To provide a composite resin tooth that has excellent fracture resistance capable of withstanding the occlusal pressure in the oral cavity and exhibits good adhesive property to a denture base.
To provide a composite resin tooth that has excellent fracture resistance capable of withstanding the occlusal pressure in the oral cavity and exhibits good adhesive property to a denture base.
To provide a composite resin tooth having a single layer structure or a layer structure of two or more layers, comprising
a composite resin layer consisting of a polymerized and cured product of a curable composition including polymerizable monomer (A), organic-inorganic composite filler (B), inorganic fine particle (C) and non-crosslinked polymer particle (D), wherein
the content of the non-crosslinked polymer particle (D) in the curable composition is within a range of 1% by mass or more and 5% by mass or less, and
an average particle diameter of all of the inorganic particles (C) contained in the curable composition is 1 μm or less.
To provide a dental glass ionomer cement composition that exhibits little stringiness of mixed material, becomes soon after completion of mixing in a state that it is possible to perform shaping operation, is excellent in cavity filling property and is excellent in application property to a dental prosthesis device, and also exhibits excellent mixability and mechanical characteristic.
To provide a dental glass ionomer cement composition that exhibits little stringiness of mixed material, becomes soon after completion of mixing in a state that it is possible to perform shaping operation, is excellent in cavity filling property and is excellent in application property to a dental prosthesis device, and also exhibits excellent mixability and mechanical characteristic.
To provide a dental glass ionomer cement composition comprising (a) acid-reactive glass powder, (b) polyalkenoic acid, (c) water, and (d) porous inorganic filler: 0.075% by mass or more and 15% by mass or less, wherein the center portion of the (d) porous inorganic filler is an inorganic particle consisting of only silicon dioxide or consisting of silicon dioxide and an oxide containing one or more metal elements.
With this powder for polishing teeth, which demonstrates a solubility of 20 mass% or less in water at 20°C, dirt on the tooth surface can be removed even with a smaller powder particle diameter.
A61K 8/46 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés organiques contenant du soufre
A61Q 11/00 - Préparations pour le nettoyage des dents, de la bouche ou des prothèses dentaires, p. ex. dentifricesBains de bouche
4.
PHOTOCURABLE ARTIFICIAL NAIL COMPOSITION, ARTIFICIAL NAIL, AND METHOD FOR PRODUCING SAME
It is an object of the present invention to provide a photocurable artificial nail composition that suppresses heat pain during curing, suppresses yellowing (including yellowing before curing), and has color tone stability. The photocurable artificial nail composition of the present invention includes a photopolymerization initiator and a polymerizable compound, in which the photopolymerization initiator contains a compound represented by General Formula (1), provided that the photopolymerization initiator does not contain an α-hydroxyalkylphenone photopolymerization initiator, and the composition does not contain a peroxide thermal polymerization initiator,
It is an object of the present invention to provide a photocurable artificial nail composition that suppresses heat pain during curing, suppresses yellowing (including yellowing before curing), and has color tone stability. The photocurable artificial nail composition of the present invention includes a photopolymerization initiator and a polymerizable compound, in which the photopolymerization initiator contains a compound represented by General Formula (1), provided that the photopolymerization initiator does not contain an α-hydroxyalkylphenone photopolymerization initiator, and the composition does not contain a peroxide thermal polymerization initiator,
wherein R represents a hydrocarbon group having 1 to 5 carbon atoms.
A61K 8/55 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés organiques contenant du phosphore
To provide a dental resin-reinforced glass ionomer cement composition that exhibits little stringiness of kneaded material, becomes soon after completion of kneading in a state that it is possible to perform shaping operation, is excellent in cavity filling property and is excellent in application property to a dental prosthesis device, and also exhibits excellent kneadability and mechanical characteristic.
To provide a dental resin-reinforced glass ionomer cement composition that exhibits little stringiness of kneaded material, becomes soon after completion of kneading in a state that it is possible to perform shaping operation, is excellent in cavity filling property and is excellent in application property to a dental prosthesis device, and also exhibits excellent kneadability and mechanical characteristic.
To provide a dental resin-reinforced glass ionomer cement composition comprising, (a) acid-reactive glass powder, (b) polyalkenoic acid, (c) water, (d) polymerizable monomer, (e1) organic-inorganic composite filler and/or (e2) porous organic filler: 1% by mass or more and 30% by mass or less, and (f) polymerization initiator.
To provide a dental resin-reinforced glass ionomer cement composition for luting that can maintain a semi-set state, at which time excess cement can be removed, for a longer period of time, is less likely to tear even when the excess cement is thin, and also has excellent adhesive property to tooth substance, which is an important as basic property of the dental cement
To provide a dental resin-reinforced glass ionomer cement composition for luting that can maintain a semi-set state, at which time excess cement can be removed, for a longer period of time, is less likely to tear even when the excess cement is thin, and also has excellent adhesive property to tooth substance, which is an important as basic property of the dental cement
To provide a dental resin-reinforced glass ionomer cement composition for luting consisting of a first agent including (a) aryl borate compound and (b) acid-reactive glass powder and a second agent including (c) polyalkenoic acid and (d) water, wherein at least one of the first agent and the second agent contains (e) polymerizable monomer, the content of the (c) polyalkenoic acid contained in the second agent based on the whole of the second agent is more than 20% by mass and less than 70% by mass, and the content of the (c) polyalkenoic acid contained in the second agent in the total of 100 parts by mass of the (c) polyalkenoic acid contained in the second agent and the (d) water contained in the second agent is more than 45 parts by mass and less than 75 parts by mass.
To provide a dental curable composition having excellent solubility of an ultraviolet absorber, sunlight stability, fluorescence property, and mechanical property.
To provide a dental curable composition having excellent solubility of an ultraviolet absorber, sunlight stability, fluorescence property, and mechanical property.
To provide a dental curable composition comprising, (A) polymerizable monomer, (B) polymerization initiator, (C) fluorescent agent, and (D) ultraviolet absorber, wherein, the dental curable composition comprises, as the (D) ultraviolet absorber, (D-1) compound having at least one first absorption maximum in the wavelength region of 250 to 320 nm and at least one second absorption maximum in the wavelength region of 320 to 400 nm, wherein the ratio of an absorbance of the first absorption maximum to an absorbance of the second absorption maximum is within the range of 1 to 4.
Dental instruments, namely, cameras for use and documentation in dental and orthodontic fields and in dental laboratories and for intraoral photography; Dental intra-oral cameras
[Problem]
[Problem]
It has been difficult to prepare a mill blank for dental cutting and machining in a state of no cracks or breaks.
[Problem]
It has been difficult to prepare a mill blank for dental cutting and machining in a state of no cracks or breaks.
[Solution]
[Problem]
It has been difficult to prepare a mill blank for dental cutting and machining in a state of no cracks or breaks.
[Solution]
To provide a curable composition for use in a mill blank for dental cutting and machining, comprising
14 to 36% by mass of (A) bifunctional urethane methacrylate monomer represented by Formula 1,
2 to 12% by mass of (B) bifunctional methacrylate monomer not containing a urethane group,
60 to 80% by mass of (C) inorganic filler,
0.1 to 0.5% by mass of (D) thermal polymerization initiator, and
0.1 to 0.5% % by mass of (E) chain transfer agent.
[Problem]
It has been difficult to prepare a mill blank for dental cutting and machining in a state of no cracks or breaks.
[Solution]
To provide a curable composition for use in a mill blank for dental cutting and machining, comprising
14 to 36% by mass of (A) bifunctional urethane methacrylate monomer represented by Formula 1,
2 to 12% by mass of (B) bifunctional methacrylate monomer not containing a urethane group,
60 to 80% by mass of (C) inorganic filler,
0.1 to 0.5% by mass of (D) thermal polymerization initiator, and
0.1 to 0.5% % by mass of (E) chain transfer agent.
[Problem]
[Problem]
To provide a photopolymerizable composition that has excellent formability in 3D printer and can prepare a three-dimensional modeled object with excellent toughness by using optical stereolithography (stereolithography).
[Problem]
To provide a photopolymerizable composition that has excellent formability in 3D printer and can prepare a three-dimensional modeled object with excellent toughness by using optical stereolithography (stereolithography).
[Solution]
[Problem]
To provide a photopolymerizable composition that has excellent formability in 3D printer and can prepare a three-dimensional modeled object with excellent toughness by using optical stereolithography (stereolithography).
[Solution]
To provide a dental photopolymerizable composition for 3D printer, comprising (a) (meth)acrylic polymerizable compound having an allophanate group, (b) (meth)acrylic polymer having one or two (meth)acryloyloxy groups, and (c) photoinitiator.
It is an object of the present invention to provide an artificial nail composition having a matte texture with reduced gloss and having high flexibility. The artificial nail composition of the present invention contains a component (A): a polymerizable compound, a component (B): urethane polymer particles, and a component (C): a polymerization initiator.
A61K 8/81 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés organiques macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons insaturées carbone-carbone
ZIRCONIA MILL BLANK FOR DENTAL CUTTING AND MACHINING AND PREPARING METHOD THEREOF, AND TRANSPARENCY IMPROVING LIQUID FOR ZIRCONIA MILL BLANK FOR DENTAL CUTTING AND MACHINING AND USING METHOD THEREOF
To provide a zirconia perfect sintered body which has a chroma of an excellent color tone and excellent translucency as compared with a zirconia mill blank for dental cutting and machining prepared from a zirconia raw material powder containing various stabilizing materials while maintaining high strength, and does not cause deformation. The zirconia mill blank of the present invention is a semi-fired zirconia mill blank for dental cutting and machining containing a semi-fired body of a ceramic particle, the zirconia mill blank for dental cutting and machining contains zirconium oxide, a stabilizing material consisting of an oxide, and a water-soluble compound salt which contains at least one element selected from calcium, magnesium and a rare earth element and is not an oxide, the content of the stabilizing material in terms of the oxide in the semi-fired body of the ceramic particle is within a range of 2 to 7 mol %, and the content of the water-soluble compound salt in the zirconia mill blank for dental cutting and machining is within a range of 0.1 to 3.5 mol %.
C04B 35/48 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates
ZIRCONIA MILL BLANK FOR DENTAL CUTTING AND MACHINING AND PREPARING METHOD THEREOF, AND TRANSPARENCY IMPROVING LIQUID FOR ZIRCONIA MILL BLANK FOR DENTAL CUTTING AND MACHINING AND USING METHOD THEREOF
To provide a zirconia perfect sintered body which has a chroma of an excellent color tone and excellent translucency as compared with a zirconia mill blank for dental cutting and machining prepared from a zirconia raw material powder containing various stabilizing materials while maintaining high strength, and does not cause deformation. The zirconia mill blank of the present invention is a semi-fired zirconia mill blank for dental cutting and machining containing a semi-fired body of a ceramic particle, the zirconia mill blank for dental cutting and machining contains zirconium oxide, a stabilizing material consisting of an oxide, and a water-soluble compound salt which contains at least one element selected from calcium, magnesium and a rare earth element and is not an oxide, the content of the stabilizing material in terms of the oxide in the semi-fired body of the ceramic particle is within a range of 2 to 7 mol %, and the content of the water-soluble compound salt in the zirconia mill blank for dental cutting and machining is within a range of 0.1 to 3.5 mol %.
C04B 35/48 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates
[Problem]
[Problem]
To provide a dental porcelain paste that can maintain a constant paste property even during long-term storage, and that hardly generates carbonization and bubbles during firing even in the case of containing organic components.
[Problem]
To provide a dental porcelain paste that can maintain a constant paste property even during long-term storage, and that hardly generates carbonization and bubbles during firing even in the case of containing organic components.
[Solution]
[Problem]
To provide a dental porcelain paste that can maintain a constant paste property even during long-term storage, and that hardly generates carbonization and bubbles during firing even in the case of containing organic components.
[Solution]
To provide a dental porcelain paste for preparing a dental prosthesis device, comprising (a) base material glass having an average particle diameter D50 of 1 to 20 μm, (b) hydrophobized fine particle silica having an average primary particle diameter of 1 to 50 nm, (c) organic solvent having a boiling point of 100 to 300° C., and (d) inorganic salt.
To provide a preparing method of a zirconia mill blank for dental cutting and machining having any one or more of translucency gradation, color gradation and strength gradation after perfect sintering by impregnating a zirconia calcined body with a plurality of impregnating solutions, which can suppress deterioration of the fitting property of a dental prosthesis device prepared from the zirconia mill blank for dental cutting and machining and a zirconia mill blank for dental cutting and machining having any one or more of translucency gradation, color gradation and strength gradation after perfect sintering and suppressing deterioration of the fitting property of a dental prosthesis device prepared from the zirconia mill blank for dental cutting and machining.
To provide a preparing method of a zirconia mill blank for dental cutting and machining having any one or more of translucency gradation, color gradation and strength gradation after perfect sintering by impregnating a zirconia calcined body with a plurality of impregnating solutions, which can suppress deterioration of the fitting property of a dental prosthesis device prepared from the zirconia mill blank for dental cutting and machining and a zirconia mill blank for dental cutting and machining having any one or more of translucency gradation, color gradation and strength gradation after perfect sintering and suppressing deterioration of the fitting property of a dental prosthesis device prepared from the zirconia mill blank for dental cutting and machining.
To porovide a zirconia mill blank for dental cutting and machining of the present invention is a preparing method of a zirconia mill blank for dental cutting and machining having any one or more of translucency gradation, color gradation and strength gradation after perfect sintering, comprising a step of impregnating a zirconia calcined body with at least two types of impregnating solutions, wherein at least one of the impregnating liquids contains a zirconium component, and in a case in which the total of metal ion concentrations (mass %) contained in each impregnating liquid is defined as Ctotal, the difference ΔCtotal which is a difference between Ctotal of each impregnating liquid is 5.0 or less.
A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
C04B 35/48 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates
C04B 41/00 - Post-traitement des mortiers, du béton, de la pierre artificielle ou des céramiquesTraitement de la pierre naturelle
C04B 41/50 - Revêtement ou imprégnation avec des substances inorganiques
To provide a zirconia mill blank for dental cutting and machining that can impart translucency gradation and color gradation similar to a natural tooth to a zirconia perfect sintered body without the need for special equipment.
To provide a zirconia mill blank for dental cutting and machining that can impart translucency gradation and color gradation similar to a natural tooth to a zirconia perfect sintered body without the need for special equipment.
To provide a zirconia mill blank for dental cutting and machining comprising
two opposing surfaces and a side surface between the two opposing surfaces, wherein
the side surface has a rectangular shape in a side view of the zirconia mill blank for dental cutting and machining, and
in a case in which
one of the two opposing surfaces is defined as surface A,
the other surface of the two opposing surfaces is defined as surface B,
a surface which is parallel to the surface A and is located at a position of 1.0 mm to 1.5 mm from the surface A toward the surface B in a direction parallel to the side surface is defined as surface C,
points which are set to having 0.5 mm of distance on the straight line in the direction parallel to the side surface from the surface C toward the surface B in the area from the surface C to the surface B are defined as point P(1), point P(2), to point P(n) in the order from the surface C,
a stabilizer concentration (mol %) at each point is defined as SP(1), SP(2), to SP(n) (n≥((shortest distance (mm) between the surface C and the surface B)−2)/0.5),
the maximum value of the stabilizer concentration (mol %) is defined as SPmax,
the minimum value of the stabilizer concentration (mol %) is defined as SPmin, and
the maximum value of ASP(m) defined by the following formula is defined as ΔSPmax,
the zirconia mill blank for dental cutting and machining has a portion where the value of “SPmax−Spmin” which is a difference between the SPmax and the SPmin is 0.3 or more, and the ΔSPmax is less than 0.5.
To provide a zirconia mill blank for dental cutting and machining that can impart translucency gradation and color gradation similar to a natural tooth to a zirconia perfect sintered body without the need for special equipment.
To provide a zirconia mill blank for dental cutting and machining comprising
two opposing surfaces and a side surface between the two opposing surfaces, wherein
the side surface has a rectangular shape in a side view of the zirconia mill blank for dental cutting and machining, and
in a case in which
one of the two opposing surfaces is defined as surface A,
the other surface of the two opposing surfaces is defined as surface B,
a surface which is parallel to the surface A and is located at a position of 1.0 mm to 1.5 mm from the surface A toward the surface B in a direction parallel to the side surface is defined as surface C,
points which are set to having 0.5 mm of distance on the straight line in the direction parallel to the side surface from the surface C toward the surface B in the area from the surface C to the surface B are defined as point P(1), point P(2), to point P(n) in the order from the surface C,
a stabilizer concentration (mol %) at each point is defined as SP(1), SP(2), to SP(n) (n≥((shortest distance (mm) between the surface C and the surface B)−2)/0.5),
the maximum value of the stabilizer concentration (mol %) is defined as SPmax,
the minimum value of the stabilizer concentration (mol %) is defined as SPmin, and
the maximum value of ASP(m) defined by the following formula is defined as ΔSPmax,
the zirconia mill blank for dental cutting and machining has a portion where the value of “SPmax−Spmin” which is a difference between the SPmax and the SPmin is 0.3 or more, and the ΔSPmax is less than 0.5.
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A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
19.
Ceramic mill blank for dental cutting and machining
To provide a ceramic mill blank for dental cutting and machining in which cracks or chips are not caused on the outer edge of the ceramic mill blank even if attaching to and detaching from a dental milling machine are repeated and it is possible to machine the vicinity of the outer edge of the ceramic mill blank.
To provide a ceramic mill blank for dental cutting and machining, wherein, the ceramic mill blank for dental cutting and machining comprises a ceramic portion to be cut and machined and one or more seal members, the ceramic portion consists of a ceramic material which is not finally sintered, the ceramic portion has an outer peripheral surface which is engageable with a holding tool, the one or more seal members are provided on the outer peripheral surface of the ceramic portion, and a length of the one or more seal members is 50% or more of a length in a circumferential direction of the outer peripheral surface provided with the one or more seal members.
B32B 7/12 - Liaison entre couches utilisant des adhésifs interposés ou des matériaux interposés ayant des propriétés adhésives
A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
B32B 3/30 - Produits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche continue dont le périmètre de la section droite a une allure particulièreProduits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche comportant des cavités ou des vides internes caractérisés par une couche comportant des retraits ou des saillies, p. ex. des gorges, des nervures
20.
COMPULE AND SYRINGE TIP HAVING DISCHARGE NOZZLE DIAMETER WIDENED AT TIP
To provide a compule or syringe tip that can discharge viscous material in an intended shape by reducing deformation of the viscous material during discharge, can prevent viscous material from adhering to unintended portion by reducing an amount of viscous material that adheres to a nozzle tip, and can reduce dripping of viscous material to improve the anti-dripping property of the viscous material.
To provide a compule or syringe tip that can discharge viscous material in an intended shape by reducing deformation of the viscous material during discharge, can prevent viscous material from adhering to unintended portion by reducing an amount of viscous material that adheres to a nozzle tip, and can reduce dripping of viscous material to improve the anti-dripping property of the viscous material.
To provide a compule or syringe tip having a discharge structure for discharging viscous material from a discharge opening, wherein the discharge structure comprises a flow path that is formed around a virtual central line and allows the viscous material to move, and a tapered flow path formed between the flow path and the discharge opening, wherein a cross-sectional area of the tapered flow path gradually increases toward the discharge opening.
To provide a syringe tip that can prevent the syringe tip from unintentionally falling-off during filling and prevent viscous material from leaking out from gaps by securely attaching the syringe tip to a syringe and can provide excellent operability without obstructing a surgical field.
To provide a syringe tip that can prevent the syringe tip from unintentionally falling-off during filling and prevent viscous material from leaking out from gaps by securely attaching the syringe tip to a syringe and can provide excellent operability without obstructing a surgical field.
To provide syringe tip to be attached to a tip of a syringe containing viscous material to discharge the viscous material, comprising
a syringe engaging portion that engages with the syringe,
a cylindrical portion having a hollow portion with a virtual center line at its center and held by a user in the case of engaging the syringe tip with the syringe, and
a nozzle portion discharging the viscous material contained in the syringe,
wherein in the case that the maximum length (mm) between both end portions of the cylindrical portion on a virtual straight line orthogonal to the virtual central line is defined as first length A, the virtual straight line orthogonal to the virtual central line and including both end portions of the cylindrical portion constituting the first length A is defined as first virtual straight line, and the length (mm) between both end portions of the cylindrical portion on a second virtual straight line orthogonal to the virtual central line and orthogonal to the first virtual straight line is defined as second length B,
the first length A and the second length B satisfy the following relational expressions (1) to (3).
To provide a syringe tip that can prevent the syringe tip from unintentionally falling-off during filling and prevent viscous material from leaking out from gaps by securely attaching the syringe tip to a syringe and can provide excellent operability without obstructing a surgical field.
To provide syringe tip to be attached to a tip of a syringe containing viscous material to discharge the viscous material, comprising
a syringe engaging portion that engages with the syringe,
a cylindrical portion having a hollow portion with a virtual center line at its center and held by a user in the case of engaging the syringe tip with the syringe, and
a nozzle portion discharging the viscous material contained in the syringe,
wherein in the case that the maximum length (mm) between both end portions of the cylindrical portion on a virtual straight line orthogonal to the virtual central line is defined as first length A, the virtual straight line orthogonal to the virtual central line and including both end portions of the cylindrical portion constituting the first length A is defined as first virtual straight line, and the length (mm) between both end portions of the cylindrical portion on a second virtual straight line orthogonal to the virtual central line and orthogonal to the first virtual straight line is defined as second length B,
the first length A and the second length B satisfy the following relational expressions (1) to (3).
First length A/Second length B≥1.5 Relational expression (1):
To provide a syringe tip that can prevent the syringe tip from unintentionally falling-off during filling and prevent viscous material from leaking out from gaps by securely attaching the syringe tip to a syringe and can provide excellent operability without obstructing a surgical field.
To provide syringe tip to be attached to a tip of a syringe containing viscous material to discharge the viscous material, comprising
a syringe engaging portion that engages with the syringe,
a cylindrical portion having a hollow portion with a virtual center line at its center and held by a user in the case of engaging the syringe tip with the syringe, and
a nozzle portion discharging the viscous material contained in the syringe,
wherein in the case that the maximum length (mm) between both end portions of the cylindrical portion on a virtual straight line orthogonal to the virtual central line is defined as first length A, the virtual straight line orthogonal to the virtual central line and including both end portions of the cylindrical portion constituting the first length A is defined as first virtual straight line, and the length (mm) between both end portions of the cylindrical portion on a second virtual straight line orthogonal to the virtual central line and orthogonal to the first virtual straight line is defined as second length B,
the first length A and the second length B satisfy the following relational expressions (1) to (3).
First length A/Second length B≥1.5 Relational expression (1):
13≥(First length A+Second length B)≥5 Relational expression (2):
To provide a syringe tip that can prevent the syringe tip from unintentionally falling-off during filling and prevent viscous material from leaking out from gaps by securely attaching the syringe tip to a syringe and can provide excellent operability without obstructing a surgical field.
To provide syringe tip to be attached to a tip of a syringe containing viscous material to discharge the viscous material, comprising
a syringe engaging portion that engages with the syringe,
a cylindrical portion having a hollow portion with a virtual center line at its center and held by a user in the case of engaging the syringe tip with the syringe, and
a nozzle portion discharging the viscous material contained in the syringe,
wherein in the case that the maximum length (mm) between both end portions of the cylindrical portion on a virtual straight line orthogonal to the virtual central line is defined as first length A, the virtual straight line orthogonal to the virtual central line and including both end portions of the cylindrical portion constituting the first length A is defined as first virtual straight line, and the length (mm) between both end portions of the cylindrical portion on a second virtual straight line orthogonal to the virtual central line and orthogonal to the first virtual straight line is defined as second length B,
the first length A and the second length B satisfy the following relational expressions (1) to (3).
First length A/Second length B≥1.5 Relational expression (1):
13≥(First length A+Second length B)≥5 Relational expression (2):
5≥Second length B Relational expression (3):
[Problem]
[Problem]
To provide a dental resin-reinforced glass ionomer cement kit which can exhibit high adhesive property to tooth substance by a simple procedure without complicated operations and contains a dental tooth surface treatment material composition and a dental resin-reinforced glass ionomer cement composition.
[Problem]
To provide a dental resin-reinforced glass ionomer cement kit which can exhibit high adhesive property to tooth substance by a simple procedure without complicated operations and contains a dental tooth surface treatment material composition and a dental resin-reinforced glass ionomer cement composition.
[Solution]
[Problem]
To provide a dental resin-reinforced glass ionomer cement kit which can exhibit high adhesive property to tooth substance by a simple procedure without complicated operations and contains a dental tooth surface treatment material composition and a dental resin-reinforced glass ionomer cement composition.
[Solution]
To provide a dental resin-reinforced glass ionomer cement kit comprising a dental tooth surface treatment material composition (i) and a dental resin-reinforced glass ionomer cement composition (ii), wherein
the dental tooth surface treatment material composition (i) contains
(A) water-soluble organic solvent: 20% by mass or more and 79% by mass or less.
(B) water: 20% by mass or more and 79% by mass or less, and
(C) polymerizable monomer having acid anhydride structure: 1% by mass or more and 30% by mass or less, and
the dental resin-reinforced glass ionomer cement composition (ii) contains
(D) acid-reactive glass powder,
(B) water,
(E′) polymer of acidic group-containing polymerizable monomer,
(F) tri or more functional (meth)acrylamide-based polymerizable monomer,
(G) hydroxyl group-containing (meth)acrylate-based polymerizable monomer, and
(H) polymerization initiator.
To provide a zirconia mill blank for dental cutting and machining which has excellent machinability in a thin workpiece such as an inlay, an onlay and a veneer, and may impart high strength and high translucency to a zirconia perfect sintered body without a special sintering such as HIP treatment, and a preparing method thereof.
To provide a zirconia mill blank for dental cutting and machining which has excellent machinability in a thin workpiece such as an inlay, an onlay and a veneer, and may impart high strength and high translucency to a zirconia perfect sintered body without a special sintering such as HIP treatment, and a preparing method thereof.
The zirconia mill blank for dental cutting and machining has a porosity within a range of 15 to 30%.
To provide a dental composition wherein the acid buffering capacity can be attained and the acid resistance of the tooth substance can be improved while maintaining very high foul breath inhibition capacity. A dental composition including: ion sustained-release glass; and a carrier for supporting the ion sustained-release glass, wherein the ion sustained-release glass is fluoroaluminoborosilicate glass having a composition range of: 15% to 35% by mass SiO2; 15% to 30% by mass Al2O3; 5% to 20% by mass B2O3; 20% to 45% by mass SrO; 5% to 15% by mass F; and 0% to 10% by mass Na2O.
A61Q 11/00 - Préparations pour le nettoyage des dents, de la bouche ou des prothèses dentaires, p. ex. dentifricesBains de bouche
A61K 8/81 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés organiques macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons insaturées carbone-carbone
A61K 6/20 - Revêtements de protection pour dents naturelles ou artificielles, p. ex. scellements, revêtements colorés ou vernis
LASERS FOR DENTAL USE AND LASER FOR DENTAL PURPOSES; LASER FOR MEDICAL, DENTAL, AND VETERINARY USE, NAMELY, LASER EQUIPMENT FOR THE PREPARATION, TREATMENT, OR DISINFECTION OF TISSUE FOR MEDICAL, DENTAL, AND VETERINARY PROCEDURES, INCLUDING HYGIENE
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
Materials for the manufacture of artificial dentures; Multilayer blanks, For dental use and For dental technical purposes; Monolayer blanks, For dental use and For dental technical purposes; Dental ceramics. Dental prostheses; Artificial teeth and dentures; Crowns and bridges for dental purposes; Implant abutments for dental purposes.
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
Materials for the manufacture of artificial dentures; Multilayer blanks, For dental use and For dental technical purposes; Monolayer blanks, For dental use and For dental technical purposes; Dental ceramics. Dental prostheses; Artificial teeth and dentures; Crowns and bridges for dental purposes; Implant abutments for dental purposes.
29.
Sintering method for dental zirconia calcined body
[Problem]
A technique for improving translucency in order to prepare a zirconia sintered body having high translucency without using special equipment, has been required.
[Solution]
(c) an average rate of temperature increase in the section from 1400° C. to the maximum temperature of the sintering process is 0.5° C./min or more and 2.5° C./min or less.
C04B 35/48 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates
[Problem]
To provide a dental photocurable composition which has sufficient mechanical property and whose rheological property is not deactivated even after long-term storage.
[Solution]
The dental photocurable composition of the present disclosure comprises (A) polymerizable monomer, (B) photosensitizer, (D) photopolymerization accelerator and (E) filler, wherein, the dental photocurable composition comprises (D1) aliphatic tertiary amine compound represented by formula (1) as the (D) photopolymerization accelerator, and the dental photocurable composition comprises (E1) hydrophobized silica fine particle having an average diameter of primary particle of 1 to 40 nm as the (E) filler.
3 represents a substituent consisting of one or more carbons which may have an electron-withdrawing group, and α-carbon of N in the formula (1) is not an electron-withdrawing group.)
To provide a dental photocurable composition having good storage stability of a matrix containing a polymerizable monomer and a polymerization initiator, etc. and excellent mechanical strength of a dental photocurable composition comprising a mixture of the matrix and a filler. The dental photocurable composition of the present disclosure comprises a matrix containing (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator and (D) photopolymerization accelerator, and (E) filler, wherein, the dental photocurable composition comprises (A1) polymerizable monomer having an acidic group as the (A) polymerizable monomer, and the dental photocurable composition comprises (D1) tertiary aliphatic amine compound having Log P of 2 or more and pKa of 10 or less as the (D) photopolymerization accelerator.
[Problem]
[Problem]
To provide a dental curable composition having good mechanical property and good storage stability before and after curing.
[Problem]
To provide a dental curable composition having good mechanical property and good storage stability before and after curing.
Solution
[Problem]
To provide a dental curable composition having good mechanical property and good storage stability before and after curing.
Solution
The dental curable composition of the present disclosure comprises (A) polymerizable monomer, (BC) polymerization initiator, (D) polymerization accelerator and (E) filler, wherein,
the (BC) polymerization initiator comprises (B) photopolymerization initiator and/or (C) chemical polymerization initiator,
the (B) photopolymerization initiator comprises (B1) photosensitizer and (B2) photoacid generator,
the (C) chemical polymerization initiator comprises (C1) organic peroxide,
the (E) filler comprises (E1) surface-treated basic filler, and
the (E1) surface-treated basic filler is treated with (F1) surface treatment agent represented by the formula (1) and/or condensate thereof.
[Problem]
To provide a dental curable composition having good mechanical property and good storage stability before and after curing.
Solution
The dental curable composition of the present disclosure comprises (A) polymerizable monomer, (BC) polymerization initiator, (D) polymerization accelerator and (E) filler, wherein,
the (BC) polymerization initiator comprises (B) photopolymerization initiator and/or (C) chemical polymerization initiator,
the (B) photopolymerization initiator comprises (B1) photosensitizer and (B2) photoacid generator,
the (C) chemical polymerization initiator comprises (C1) organic peroxide,
the (E) filler comprises (E1) surface-treated basic filler, and
the (E1) surface-treated basic filler is treated with (F1) surface treatment agent represented by the formula (1) and/or condensate thereof.
[Formula (1)]
[Problem]
To provide a dental curable composition having good mechanical property and good storage stability before and after curing.
Solution
The dental curable composition of the present disclosure comprises (A) polymerizable monomer, (BC) polymerization initiator, (D) polymerization accelerator and (E) filler, wherein,
the (BC) polymerization initiator comprises (B) photopolymerization initiator and/or (C) chemical polymerization initiator,
the (B) photopolymerization initiator comprises (B1) photosensitizer and (B2) photoacid generator,
the (C) chemical polymerization initiator comprises (C1) organic peroxide,
the (E) filler comprises (E1) surface-treated basic filler, and
the (E1) surface-treated basic filler is treated with (F1) surface treatment agent represented by the formula (1) and/or condensate thereof.
[Formula (1)]
MXn [Chemical formula 1]
[Problem]
To provide a dental curable composition having good mechanical property and good storage stability before and after curing.
Solution
The dental curable composition of the present disclosure comprises (A) polymerizable monomer, (BC) polymerization initiator, (D) polymerization accelerator and (E) filler, wherein,
the (BC) polymerization initiator comprises (B) photopolymerization initiator and/or (C) chemical polymerization initiator,
the (B) photopolymerization initiator comprises (B1) photosensitizer and (B2) photoacid generator,
the (C) chemical polymerization initiator comprises (C1) organic peroxide,
the (E) filler comprises (E1) surface-treated basic filler, and
the (E1) surface-treated basic filler is treated with (F1) surface treatment agent represented by the formula (1) and/or condensate thereof.
[Formula (1)]
MXn [Chemical formula 1]
(In the formula, M is a metal atom selected from Si, Ti, Zr, and Al, X is H, OH or a hydrolyzable group, and may be the same or different from each other. In the case that M is Si, Ti or Zr, n is 4. In the case that M is Al, n is 3.)
[Problem]
To provide a photocurable composition having a high curing depth.
[Solution]
To provide a photocurable composition of the present disclosure comprises (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator, and (D) photopolymerization accelerator, wherein, the photocurable composition comprises (D-1) amine compound represented by formula (1) as the (D) photopolymerization accelerator.
2 is a substituent represented by the formula (2)).
C08F 2/46 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire
C08F 2/50 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible avec des agents sensibilisants
C08G 61/04 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aliphatiques
[Problem]
[Problem]
To provide a dental adhesive composition having excellent storage stability and adhesive strength.
[Problem]
To provide a dental adhesive composition having excellent storage stability and adhesive strength.
[Solution]
[Problem]
To provide a dental adhesive composition having excellent storage stability and adhesive strength.
[Solution]
To provide a dental adhesive composition, comprising (A) polymerizable monomer, (D) photopolymerization accelerator, and (F) volatile organic solvent, wherein, the dental adhesive composition comprises (A-1) polymerizable monomer having an acidic group as the (A) polymerizable monomer, and the dental adhesive composition comprises (D-1) aliphatic tertiary amine compound represented by formula (1) as the (D) photopolymerization accelerator.
[Problem]
To provide a dental adhesive composition having excellent storage stability and adhesive strength.
[Solution]
To provide a dental adhesive composition, comprising (A) polymerizable monomer, (D) photopolymerization accelerator, and (F) volatile organic solvent, wherein, the dental adhesive composition comprises (A-1) polymerizable monomer having an acidic group as the (A) polymerizable monomer, and the dental adhesive composition comprises (D-1) aliphatic tertiary amine compound represented by formula (1) as the (D) photopolymerization accelerator.
[Problem]
To provide a dental adhesive composition having excellent storage stability and adhesive strength.
[Solution]
To provide a dental adhesive composition, comprising (A) polymerizable monomer, (D) photopolymerization accelerator, and (F) volatile organic solvent, wherein, the dental adhesive composition comprises (A-1) polymerizable monomer having an acidic group as the (A) polymerizable monomer, and the dental adhesive composition comprises (D-1) aliphatic tertiary amine compound represented by formula (1) as the (D) photopolymerization accelerator.
(wherein R1 represents a substituent consisting of three or more carbons having an electron-withdrawing group at α-carbon and/or β-carbon of an amine starting from N, R2 represents a substituent consisting of three or more carbons which may have an electron-withdrawing group, R3 represents a substituent consisting of one or more carbons which may have an electron-withdrawing group, and α-carbon of N in the formula (1) is not an electron-withdrawing group.)
To provide a dental photocurable composition which can exhibit excellent mechanical characteristics even after returning from a low temperature to room temperature.
To provide a dental photocurable composition, comprising (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator and (D) photopolymerization accelerator and the (C) photoacid generator may include only (C-1) iodonium salt-based compound of an anion having log S of −4 or less.
C08F 2/46 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire
C08F 2/50 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible avec des agents sensibilisants
C08G 61/04 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aliphatiques
[Problem]
To provide a dental photocurable composition having sufficient mechanical property and being excellent in color tone selectivity because of having a small color difference between before curing and after curing.
[Solution]
To provide a dental photocurable composition, comprising (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator, (D) photopolymerization accelerator and (E) filler, wherein, the dental photocurable composition comprises (B-1) α-diketone compound as the (B) photosensitizer, and the dental photocurable composition comprises, with respect to 100 parts by mass of the (A) polymerizable monomer, 0.15 parts by mass or less of the (B-1) α-diketone compound, 0.5 parts by mass or more of the (C) photoacid generator, and 100 parts by mass or more of the (E) filler.
A61K 6/30 - Compositions pour fixer temporairement ou de façon permanente les dents ou les palais, p. ex. apprêts pour adhésifs dentaires
A61K 6/831 - Emploi d'éléments non métalliques ou de leurs composés, p. ex. de carbone
A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
A61K 6/61 - Initiateurs cationiques, anioniques ou redox
C08F 220/28 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle ne contenant pas de cycles aromatiques dans la partie alcool
C08F 220/32 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle contenant des radicaux époxyde
C08F 2/50 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible avec des agents sensibilisants
[Problem]
[Problem]
A technique for imparting high translucency which is similar to an enamel of a natural tooth to a zirconia sintered body, has been required.
[Problem]
A technique for imparting high translucency which is similar to an enamel of a natural tooth to a zirconia sintered body, has been required.
[Solution]
[Problem]
A technique for imparting high translucency which is similar to an enamel of a natural tooth to a zirconia sintered body, has been required.
[Solution]
To provide a zirconia mill blank for dental cutting and machining, containing, an yttrium compound and an indium compound as stabilizers, wherein, an amount of the yttrium compound is within a range of 3.0 mol % to 6.0 mol % in terms of oxide, an amount of the indium compound is within a range of 0.2 mol % to 3.0 mol % in terms of oxide, and a total amount of the yttrium compound and the indium compound is within a range of 5.5 mol % to 7.0 mol % in terms of oxide.
To provide a liquid for improving translucency for dental zirconia calcined body which may impart high translucency which is similar to an enamel of a natural tooth to a zirconia sintered body and a method for using thereof.
The liquid for improving translucency for dental zirconia calcined body of the present disclosure contains a solvent and an indium compound, wherein a content of the indium compound based on the total amount of the liquid improving translucency for dental zirconia calcined body is within a range of 2.0 wt. % to 20.0 wt. % in terms of indium.
A61K 6/84 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des métaux ou des alliages
A61K 6/818 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de zirconium
39.
DENTAL COMPOSITION HAVING CHARACTERISTIC IN SILANE COUPLING MATERIAL COMPOUNDING INDEX
[Problem]
[Problem]
To provide a dental adhesive composition realizing excellent durable adhesive strength with respect to various dental restorative materials for cutting and machining such as glass ceramics containing lithium disilicate, a dental resin for cutting and machining, and a dental resin for cutting and machining made of a glass fiber reinforced resin in particular and with respect to a tooth substance, and having excellent storage stability simultaneously.
[Problem]
To provide a dental adhesive composition realizing excellent durable adhesive strength with respect to various dental restorative materials for cutting and machining such as glass ceramics containing lithium disilicate, a dental resin for cutting and machining, and a dental resin for cutting and machining made of a glass fiber reinforced resin in particular and with respect to a tooth substance, and having excellent storage stability simultaneously.
[Solution]
[Problem]
To provide a dental adhesive composition realizing excellent durable adhesive strength with respect to various dental restorative materials for cutting and machining such as glass ceramics containing lithium disilicate, a dental resin for cutting and machining, and a dental resin for cutting and machining made of a glass fiber reinforced resin in particular and with respect to a tooth substance, and having excellent storage stability simultaneously.
[Solution]
The dental adhesive composition of the present invention comprises a matrix containing (A1) silane coupling material represented by structural formula of [Chemical formula 1],
[Problem]
To provide a dental adhesive composition realizing excellent durable adhesive strength with respect to various dental restorative materials for cutting and machining such as glass ceramics containing lithium disilicate, a dental resin for cutting and machining, and a dental resin for cutting and machining made of a glass fiber reinforced resin in particular and with respect to a tooth substance, and having excellent storage stability simultaneously.
[Solution]
The dental adhesive composition of the present invention comprises a matrix containing (A1) silane coupling material represented by structural formula of [Chemical formula 1],
[Problem]
To provide a dental adhesive composition realizing excellent durable adhesive strength with respect to various dental restorative materials for cutting and machining such as glass ceramics containing lithium disilicate, a dental resin for cutting and machining, and a dental resin for cutting and machining made of a glass fiber reinforced resin in particular and with respect to a tooth substance, and having excellent storage stability simultaneously.
[Solution]
The dental adhesive composition of the present invention comprises a matrix containing (A1) silane coupling material represented by structural formula of [Chemical formula 1],
(B) polymerizable monomer having an acidic group and (C) polymerizable monomer having no acidic group, and wherein the (C) polymerizable monomer having no acidic group contains (C1) polymerizable monomer having no acidic group and having one or more hydroxyl groups, the (A1) silane coupling material represented by structural formula of [Chemical formula 1] and the (C1) polymerizable monomer having no acidic group and having one or more hydroxyl groups coexist in at least one matrix, and the dental adhesive composition satisfies at least one of following formulas (1) and (2).
[Problem]
To provide a dental adhesive composition realizing excellent durable adhesive strength with respect to various dental restorative materials for cutting and machining such as glass ceramics containing lithium disilicate, a dental resin for cutting and machining, and a dental resin for cutting and machining made of a glass fiber reinforced resin in particular and with respect to a tooth substance, and having excellent storage stability simultaneously.
[Solution]
The dental adhesive composition of the present invention comprises a matrix containing (A1) silane coupling material represented by structural formula of [Chemical formula 1],
(B) polymerizable monomer having an acidic group and (C) polymerizable monomer having no acidic group, and wherein the (C) polymerizable monomer having no acidic group contains (C1) polymerizable monomer having no acidic group and having one or more hydroxyl groups, the (A1) silane coupling material represented by structural formula of [Chemical formula 1] and the (C1) polymerizable monomer having no acidic group and having one or more hydroxyl groups coexist in at least one matrix, and the dental adhesive composition satisfies at least one of following formulas (1) and (2).
0.005≤Total amount of silane coupling material compounding amount index in matrix ((S1×W1)/M1)≤0.070 [Formula (1)]
[Problem]
To provide a dental adhesive composition realizing excellent durable adhesive strength with respect to various dental restorative materials for cutting and machining such as glass ceramics containing lithium disilicate, a dental resin for cutting and machining, and a dental resin for cutting and machining made of a glass fiber reinforced resin in particular and with respect to a tooth substance, and having excellent storage stability simultaneously.
[Solution]
The dental adhesive composition of the present invention comprises a matrix containing (A1) silane coupling material represented by structural formula of [Chemical formula 1],
(B) polymerizable monomer having an acidic group and (C) polymerizable monomer having no acidic group, and wherein the (C) polymerizable monomer having no acidic group contains (C1) polymerizable monomer having no acidic group and having one or more hydroxyl groups, the (A1) silane coupling material represented by structural formula of [Chemical formula 1] and the (C1) polymerizable monomer having no acidic group and having one or more hydroxyl groups coexist in at least one matrix, and the dental adhesive composition satisfies at least one of following formulas (1) and (2).
0.005≤Total amount of silane coupling material compounding amount index in matrix ((S1×W1)/M1)≤0.070 [Formula (1)]
0.001≤Total amount of silane coupling material compounding amount index in composition ((S2×W2)/M2)≤0.015 [Formula (2)]
A zirconia mill blank for dental cutting and machining which may impart reproducibility of color tone similar to a natural tooth and high strength to a zirconia perfect sintered body without a special sintering method such as HIP treatment.
The zirconia mill blank for dental cutting and machining comprises at least two intermediate layers LA and LB which satisfy the Formula (1) and Formula (2) defined herein, and change directions of yttria concentration, alumina concentration and contrast ratio in a stacking direction are not changed by the at least two intermediate layers.
[Problem]
[Problem]
To support the metal without segregation on the zirconia mill blank for dental cutting and machining which has been adjusted to a hardness that enables to cut and machine by calcining at a low temperature.
[Problem]
To support the metal without segregation on the zirconia mill blank for dental cutting and machining which has been adjusted to a hardness that enables to cut and machine by calcining at a low temperature.
[Solution]
[Problem]
To support the metal without segregation on the zirconia mill blank for dental cutting and machining which has been adjusted to a hardness that enables to cut and machine by calcining at a low temperature.
[Solution]
A zirconia mill blank for dental cutting and machining is prepared by A preparing method of a zirconia mill blank for dental cutting and machining, comprising an impregnation step of impregnating a porous zirconia molded body with an impregnating solution containing at least one metal ion and at least one precipitant, and a deposition step of decomposing the precipitant in the porous zirconia molded body to deposit a metal compound.
A composite material including silanated filler and mixed polymerizable monomer, having a stable pasty property which keeps well and has a consistent usability. A composite material containing a silanated filler, a polymerizable monomer, and a polymerization initiator, and may be produced by a process which includes a mixed polymerizable monomer preparing step, a silanation step, a silanated filler preserving step, a composite material preparing step, a composite material preserving step, a composite material filling step, and a small quantity preserving container preserving step.
B65B 3/00 - Emballage de matériaux plastiques, de semi-liquides, de liquides ou de liquides et solides mélangés, dans des réceptacles ou récipients individuels, p. ex. dans des sacs ou sachets, boîtes, cartons, bidons ou pots
B65B 39/00 - Ajutages, entonnoirs ou guides pour introduire des objets ou matériaux dans les réceptacles ou les emballages
B29K 105/00 - Présentation, forme ou état de la matière moulée
A dental glass ionomer cement composition that exhibits high mechanical properties. In particular, the dental glass ionomer cement composition of the present disclosure comprising (a) non-crosslinked polyalkenoic acid, (b) water, (c) crosslinked polyalkenoic acid: 0.01 to 10 wt. %, and (d) acid-reactive glass powder, exhibits extremely high compressive strength by including the crosslinked polyalkenoic acid in the specified content range.
To provide a photopolymerizable type dental surface coating material composition which may finish the applied part lubriciously in a short time by exhibiting excellent surface curability regardless of the type of light irradiator, may protect the restoration from abrasion and stain for a long time by exhibiting excellent adhesive property to various restorations including the dental glass ionomer cement for filling and the tooth substance, and may have excellent storage stability that can maintain properties and characteristics for a long time. The photopolymerizable type dental surface coating composition of the present disclosure comprises
(a) polyfunctional polymerizable monomer,
(b) volatile monofunctional polymerizable monomer,
(c) acidic group-containing polymerizable monomer,
(d) α-diketone compound,
(e-1) aromatic tertiary amine as (e) amine compound, and
(e-2) aliphatic tertiary amine as (e) amine compound, wherein
the compounding ratio of the (e-1) and the (e-2) is within a range of 1.0:99.0 to 70.0:30.0 in terms of mass ratio.
To provide one liquid type dental adhesive composition that exhibits excellent adhesive property to glass ceramics, oxide-base ceramics and tooth substance, and has excellent storage stability, which are contrary features. One liquid type dental adhesive composition contains (a) silane coupling agent represented by general formula (1), (b) acidic group-containing polymerizable monomer, (c) volatile organic solvent, and (d) water.
3 represents C1-C8 alkyl group, and n is integer selected from 1 to 3.)
To provide a dental curable composition having excellent curability and storage stability. The dental curable composition contains (a) transition metal adsorbent in which a transition metal compound of the period 4 in the periodic table is adsorbed on an inorganic particle which is non-reactive with a transition metal of the period 4 in the periodic table, (b) thiourea derivative, (c) organic peroxide having a hydroperoxide group, and (d) polymerizable monomer, wherein the (d) polymerizable monomer contains (d-1) acidic group-non-containing polymerizable monomer, and wherein a pore volume of the inorganic particle which is non-reactive with a transition metal of the period 4 in the periodic table is 0.2 cc/g or less.
C08F 2/46 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire
C08F 2/50 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible avec des agents sensibilisants
C08G 61/04 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aliphatiques
To provide a dental photopolymerizable composition which can prepare a dental restoration with excellent aesthetic and mechanical properties by optical three-dimensional modeling method (stereolithography). The dental photopolymerizable composition for 3D printer of the present invention comprises: a (a) (meth)acrylate-based polymerizable monomer consisting of a (a1) (meth)acrylate-based polymerizable monomer containing a urethane structure and a (a2) (meth)acrylate-based polymerizable monomer not containing a urethane structure, a (b) cohesive inorganic filler, and a (c) photopolymerization initiator, wherein; a ratio of the (a1) (meth)acrylate-based polymerizable monomer containing a urethane structure and the (a2) (meth)acrylate-based polymerizable monomer not containing a urethane structure in the (a) (meth)acrylate-based polymerizable monomer is 51 to 80: 49 to 20 pts.wt., a ratio of the (a) (meth)acrylate-based polymerizable monomer and the (b) cohesive inorganic filler is 50 to 91: 50 to 9 pts.wt., and the dental photopolymerizable composition for 3D printer contains 0.1 to 5 pts.wt. of the (c) photopolymerization initiator based on 100 pts.wt. of the (a) (meth)acrylate-based polymerizable monomer.
An object of the present disclosure is to provide a dental composition that can exhibit sufficient curability even in a state where moisture is excessive as in the oral environment. The dental composition of the present disclosure contains component (a): monomer containing (meth)acrylamide group represented by formula (1):
(In formula, R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other. R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other.)
An object of the present invention is to provide a two-paste type dental resin-reinforced glass ionomer cement composition which exhibit high surface curability even under wet conditions, which makes difficult for the surface to become cloudy even if moisture comes in contact with at the initial stage of curing, exhibits high mechanical properties, low water absorption expansion and excellent coloring resistance in the set product and is also excellent in storage stability. The two-paste type dental resin-reinforced glass ionomer cement composition of the present invention consists of two pastes, wherein at least one of the two pastes contains (a) acid-reactive glass powder, (b) polymer of acidic group-containing polymerizable monomer, (c) water, (d) hydroxyl group-containing (meth)acrylate-based polymerizable monomer, (e) tri or more functional (meth)acrylamide-based polymerizable monomer, and (f) polymerization initiator, wherein the paste containing the (c) water does not contain at least one of the (a) acid-reactive glass powder and the (b) polymer of acidic group-containing polymerizable monomer.
An object of the present invention is to provide a dental resin-reinforced glass ionomer cement composition which exhibit high surface curability even under wet conditions, which makes it difficult for the surface to become cloudy even if moisture comes in contact with at the initial stage of curing, exhibits high mechanical properties, low water absorption expansion and excellent coloring resistance in the set product and is also excellent in storage stability. The dental resin-reinforced glass ionomer cement composition consisting of a powder material and a liquid material, wherein the powder material contains (a) acid-reactive glass powder, the liquid material contains (b) water, (c) polymer of acidic group-containing polymerizable monomer, (d) hydroxyl group-containing (meth)acrylate-based polymerizable monomer and (e) tri or more functional (meth)acrylamide-based polymerizable monomer, and at least one of the powder material and the liquid material contains (f) polymerization initiator.
To provide a dental stereolithography-type three-dimensional printing material in which the total preparing time required from modeling with using a 3D printer to a final curing is short, work efficiency is excellent, temporal shrinkage deformation of a dental three-dimensional modeled object is suppressed and a dimensional accuracy is excellent. The dental stereolithography-type three-dimensional printing material of the present invention comprises at least one or more (a) monofunctional acrylate monomer having an aromatic ring and (b) photopolymerization initiator, wherein an electronegativity difference between adjacent atoms which are bonded by covalent bond in all atoms constituting the (a) monofunctional acrylate monomer having an aromatic ring is less than 1.0.
A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
C08F 2/50 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible avec des agents sensibilisants
C08F 20/16 - Esters des alcools ou des phénols monohydriques des phénols ou des alcools contenant plusieurs atomes de carbone
C08F 20/20 - Esters des alcools polyhydriques ou des phénols polyhydriques
C08F 22/12 - Esters de phénols ou d'alcools saturés
An object of the present disclosure is to provide a zirconia mill blank for dental cutting and machining which may impart high translucency similar to an enamel of a natural tooth to zirconia sintered body even in a short time sintering, and a preparing method thereof. In addition, the present disclosure provides a zirconia mill blank for dental cutting and machining which may impart the same degree of translucency to a zirconia sintered body even in a short time sintering as compared with the case of sintering for 427 minutes. The zirconia mill blank for dental cutting and machining of the present disclosure contains a gallium compound.
C04B 35/48 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates
A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
To provide a dental porcelain paste which can maintain maintaining the paste state and have excellent application property for a long period of time and hardly causes carbonization or bubbles due to the influence of an organic component or a polymer component during firing. The present invention provides a dental porcelain paste for preparing a dental prosthesis device, comprising: 50.0 to 80.0 wt. % of a glass powder (a) having a maximum particle diameter of 100 μm or less and an average particle diameter of 1 to 20 μm, 0.5 to 10.0 wt. % of a hydrophobized fine particle silica (b) having an average primary particle diameter of 1 to 50 nm, and 10.0 to 49.5 wt. % of an organic solvent (c) having a boiling point it is within (bp) of 100 to 300° C.
C03C 8/16 - Mélanges de frittes vitreuses contenant des additifs, p. ex. des agents opacifiants, des colorants, des agents de broyage agents vecteurs ou de suspension, p. ex. suspension
C03C 8/14 - Mélanges de frittes vitreuses contenant des additifs, p. ex. des agents opacifiants, des colorants, des agents de broyage
C03C 14/00 - Compositions de verre contenant un constituant non vitreux, p. ex. compositions contenant des fibres, filaments, trichites, paillettes ou similaires, dispersés dans une matrice de verre
C03C 1/04 - Opacifiants, p. ex. fluorures ou phosphatesPigments
[Problem]
To select a dental cement or a trial test material for easily obtaining high color tone adaptability to peripheral tooth substances, in mounting of or trial test of a prosthesis device
[Solution]
(wherein p is an arbitrary integer of 2≤p≤n).
To provide a zirconia mill blank for dental cutting and machining which has excellent machinability in a thin workpiece such as an inlay, an onlay and a veneer, and may impart high strength and high translucency to a zirconia perfect sintered body without a special sintering such as HIP treatment, and a preparing method thereof. The zirconia mill blank for dental cutting and machining has a porosity within a range of 15 to 30%.
A61C 1/08 - Éléments de machines spécialement adaptés à la chirurgie dentaire
A61C 3/02 - Instruments à forer ou couperInstruments agissant à la façon d'une décapeuse au jet de sable
B22F 3/04 - Compactage seul par utilisation de pression de fluide
B22F 3/24 - Traitement ultérieur des pièces ou objets
C04B 35/622 - Procédés de mise en formeTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques
C04B 38/00 - Mortiers, béton, pierre artificielle ou articles de céramiques poreuxLeur préparation
C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle
57.
Zirconia mill blank for dental cutting and machining and preparing method thereof, and transparency improving liquid for zirconia mill blank for dental cutting and machining and using method thereof
To provide a zirconia perfect sintered body which has a chroma of an excellent color tone and excellent translucency as compared with a zirconia mill blank for dental cutting and machining prepared from a zirconia raw material powder containing various stabilizing materials while maintaining high strength, and does not cause deformation. The zirconia mill blank of the present invention is a semi-fired zirconia mill blank for dental cutting and machining containing a semi-fired body of a ceramic particle, the zirconia mill blank for dental cutting and machining contains zirconium oxide, a stabilizing material consisting of an oxide, and a water-soluble compound salt which contains at least one element selected from calcium, magnesium and a rare earth element and is not an oxide, the content of the stabilizing material in terms of the oxide in the semi-fired body of the ceramic particle is within a range of 2 to 7 mol %, and the content of the water-soluble compound salt in the zirconia mill blank for dental cutting and machining is within a range of 0.1 to 3.5 mol %.
C04B 35/48 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates
To provide a one paste type dental adhesive composition which has mechanical characteristics and aesthetic property required in the restoration material, is superior in durable adhesive strength to the tooth substance, and is hard to be affected by the polymerization shrinkage stress and exhibits excellent durable adhesive strength even if the composition of the present invention is collectively filled and cured.
To provide a dental adhesive composition comprising: (a) an acidic group-non-containing polymerizable monomer, (b) an acidic group-containing polymerizable monomer, (c) a filler, (d) a photo polymerization initiator, and (e) a chain transfer agent, wherein the chain transfer agent (e) contains α-alkylstyrene compound.
To provide a liquid material which can only adjust transparency by applying on a part of a zirconia crown having high transparency, without coloring.
(c) 1 to 20 wt. % of an organic solvent.
A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
A61C 13/08 - Dents artificiellesFabrication de dents artificielles
C04B 35/48 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates
C04B 41/00 - Post-traitement des mortiers, du béton, de la pierre artificielle ou des céramiquesTraitement de la pierre naturelle
C04B 41/46 - Revêtement ou imprégnation avec des substances organiques
C04B 41/49 - Composés comportant au moins une liaison carbone-métal ou carbone-silicium
C09D 7/61 - Adjuvants non macromoléculaires inorganiques
C09D 7/63 - Adjuvants non macromoléculaires organiques
A61K 6/60 - Préparations pour la technique dentaire comprenant des additifs organiques ou organométalliques
A61K 6/70 - Préparations pour la technique dentaire comprenant des additifs inorganiques
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
35 - Publicité; Affaires commerciales
Produits et services
materials for dental bridges; dental abrasives; dental ceramics; materials for dental fillings; adhesive for dentures; materials for artificial teeth dental drills; bits for dental drills; dental broaches; cutting discs for dental purposes; dental mirrors; dental burs; dental syringes; dental crowns; artificial teeth; pins for artificial teeth; dental implants; teeth protectors for dental purposes; orthodontic appliance for dentist; dental intra-oral cameras; oral irrigators for use in dentistry; shade guides for dental use; dental bridges retail and wholesale store services for dental apparatus and instruments; organization and conducting of product presentations; administrative processing of purchase orders
61.
Dental zirconia blank having multilayer structure different in content of yttria
To provide a dental zirconia blank which has high permeability, can reproduce a color tone close to a natural tooth and a strength to be able to tolerate in oral cavity. Furthermore, to provide a dental zirconia blank from which a prosthesis device of 4 or more units having high strength can be prepared. To provide a dental zirconia blank having a plurality of layers, comprising; a first layer consisting of a high permeability ceramic containing 91.6 to 96.5 mol % of zirconium oxide and 3.5 to 8.4 mol % of yttrium oxide, and a second layer consisting of a low permeability ceramic containing 95.6 to 98.5 mol % of zirconium oxide and 1.5 to 4.4 mol % of yttrium oxide, wherein a content rate of yttrium oxide in the low permeability ceramic is lower than a content rate of yttrium oxide in the high permeability ceramic by 0.5 to 5.4 mol %, and the first layer is positioned at one end of the plurality of layers in a layering direction.
To provide a glass ionomer cement having excellent removality of the excess cement after setting because of having shape retaining property where a kneaded material does not drip and flow by their own weights, few risk of water sensitivity and excellent operability at the bonding such that excess cement can be removed easily after an application in an oral cavity in an early timing in spite of exhibiting a thin film thickness at the bonding. A dental glass ionomer cement composition for luting comprises at least; a component (a) acid reactive glass powder having an average particle diameter within a range of 4.5 to 7.0 μm, a component (b) polymer of an acid group-containing polymerizable monomer having a weight average molecular weight within a range of 30000 to 100000, a component (c) chelating agent and a component (d) water, wherein a plastic flow distance of a kneaded material before setting is 2 mm or less, and a removal possible time of an excess cement is 2 minutes or less.
C03C 3/087 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant de l'oxyde d'aluminium ou un composé du fer contenant un oxyde d'un métal divalent contenant de l'oxyde de calcium, p. ex. verre à vitre ordinaire ou verre pour récipients creux
A61C 8/00 - Moyens destinés à être fixés à l'os de la mâchoire pour consolider les dents naturelles ou pour y assujettir des prothèses dentairesImplants dentairesOutils pour l'implantation
C03C 3/093 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant du bore contenant de l'aluminium contenant du zinc ou du zirconium
64.
Composition with excellent storage stability using highly basic filler
To provides a polymerizable composition having high storage stability and high color stability. To provide a two-paste type dental polymerizable composition of the present invention is a two-paste type dental polymerizable composition comprising a first paste containing (A) at least one kind of polemerizable monomer, an (B) organic peroxide as a chemical polymerization initiator, and a (C) basic filler, and a second paste containing (A) at least one kind of polemerizable monomer, a (C) basic filler and an (D) aromatic amine compound as a chemical polymerization accelerator, wherein the second paste contains 30 to 80 parts by weight of the (C) basic filler based on 100 parts by weight of the total amount of the second paste.
A61K 6/884 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des résines naturelles ou synthétiques
A61K 6/887 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
65.
Composite material having reduced degradation of pasty property
A composite material including silanated filler and mixed polymerizable monomer, having a stable pasty property which keeps well and has a consistent usability. A composite material containing a silanated filler, a polymerizable monomer, and a polymerization initiator, and may be produced by a process which includes in order of a mixed polymerizable monomer preparing step, a mixed polymerizable monomer preserving step, a composite material preparing step, a composite material preserving step, a composite material filling step, and a small quantity preserving container preserving step.
3-free dental lithium silicate glass composition comprising the following components:
2: 60.0 to 80.0% by weight
2O: 10.0 to 17.0% by weight
2O: 0.5 to 10.0% by weight
a nucleating agent: 1.0 to 6.0% by weight
a colorant: 0.0 to 10.0% by weight, and,
2: 5.0 to 10.0% by weight.
C03C 10/04 - Phase cristalline de silicate ou polysilicate, p. ex. mullite, diopside, sphène, plagioclase
C03C 10/02 - Phase cristalline sans silice et sans silicate, p. ex. spinelle, titanate de barium
C03C 10/00 - Verre dévitrifié ou vitrocéramiques, c.-à-d. verre ou céramiques ayant une phase cristalline dispersée dans la phase vitreuse et constituant au moins 50% en poids de la composition
C03C 3/095 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant des terres rares
C03C 4/00 - Compositions pour verres ayant des propriétés particulières
C03C 3/097 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant du phosphore, du niobium ou du tantale
A61K 6/884 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des résines naturelles ou synthétiques
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
Chemicals for dental and dental technology purposes, included in class 5; Teeth filling material; Tooth cement; Dental lacquer; Composites for dental and dental technology purposes; Dental impression materials; Duplicating masses for dental and dental technology purposes; Embedding compounds for dental purposes; Crown and bridge materials for dental and dental technology purposes; Bonding material and primers for dental and dental technology purposes; Diagnostic preparations, and kits consisting of diagnostic preparations and material for dental and dental technology purposes. Dental and dentistry instruments, appliances and apparatuses; False teeth, dental prostheses; Crowns and bridges for dental purposes; Dental ceramics; Application instruments for dental and dental technology purposes.
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
Chemicals for dental and dental technology purposes, included in class 5; Teeth filling material; Tooth cement; Dental lacquer; Composites for dental and dental technology purposes; Dental impression materials; Duplicating masses for dental and dental technology purposes; Embedding compounds for dental purposes; Crown and bridge materials for dental and dental technology purposes; Bonding material and primers for dental and dental technology purposes; Diagnostic preparations, and kits consisting of diagnostic preparations and material for dental and dental technology purposes. Dental and dentistry instruments, appliances and apparatuses; False teeth, dental prostheses; Crowns and bridges for dental purposes; Dental ceramics; Application instruments for dental and dental technology purposes.
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
Chemicals for dental and dental technology purposes, included in class 5; Teeth filling material; Tooth cement; Dental lacquer; Composites for dental and dental technology purposes; Dental impression materials; Duplicating masses for dental and dental technology purposes; Embedding compounds for dental purposes; Crown and bridge materials for dental and dental technology purposes; Bonding material and primers for dental and dental technology purposes; Diagnostic preparations, and kits consisting of diagnostic preparations and material for dental and dental technology purposes. Dental and dentistry instruments, appliances and apparatuses; False teeth, dental prostheses; Crowns and bridges for dental purposes; Dental ceramics; Application instruments for dental and dental technology purposes.
71.
Dental curable composition including chain transfer agent
A dental curable composition capable of use as a dental material that can substitute part or all of a natural tooth, in particular, a resin material for dental cutting and machining in the field of dental care. When a block shape usable as the resin material is produced, while mechanical properties and aesthetic properties required for a crown prosthetic appliance are maintained, the dental curable composition can be molded and processed with pressure and heating while strain generated in the block is reduced and no cracks and chipping occur. The dental curable composition includes (a) a polymerizable monomer and (b) a filler in a weight ratio of 10:90 to 70:30, and 0.01 to 10 parts by weight of (c) a polymerization initiator and 0.001 to 1 part by weight of (d) a chain transfer agent being a terpenoid compound based on 100 parts by weight of the polymerizable monomer (a).
A61K 8/81 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés organiques macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons insaturées carbone-carbone
C08L 33/06 - Homopolymères ou copolymères des esters d'esters ne contenant que du carbone, de l'hydrogène et de l'oxygène, l'oxygène, faisant uniquement partie du radical carboxyle
A61K 6/70 - Préparations pour la technique dentaire comprenant des additifs inorganiques
A61K 6/20 - Revêtements de protection pour dents naturelles ou artificielles, p. ex. scellements, revêtements colorés ou vernis
To provide a phosphate-based dental investment material which can used for metal and press ceramic and especially can impart the lubricity to the surface of a press ceramic, and a phosphate-based dental investment material which can be subjected to a flash heating for press ceramic, can obtain sufficient the hardening expansion, and can easily remove the investment material after press molding. A phosphate-based dental investment material of the present disclosure comprising a powder material and a liquid material, wherein the powder material contains (a) magnesium oxide: 5 to 20 wt. %; (b) ammonium dihydrogenphosphate: 8 to 25 wt. % and the liquid material contains (c) aqueous solution including a cation-treated colloidal silica.
A61K 6/838 - Composés du phosphore, p. ex. apatite
A61C 13/20 - Méthodes ou dispositifs pour souder, mouler, façonner ou fondre
A61K 6/807 - Préparations pour la fabrication de dents artificielles, l’obturation ou le recouvrage des dents comprenant des céramiques comprenant de l’oxyde de magnésium
The present invention provides the dental primer for modifying surface of a dental restoration, comprising: an organic solvent, a silane coupling agent and an acid anhydride.
The present invention provides the dental primer for modifying surface of a dental restoration, comprising: an organic solvent, a silane coupling agent and a weakly acidic compound.
C08L 33/10 - Homopolymères ou copolymères des esters de l'acide méthacrylique
C09J 5/02 - Procédés de collage en généralProcédés de collage non prévus ailleurs, p. ex. relatifs aux amorces comprenant un traitement préalable des surfaces à joindre
C09J 11/04 - Additifs non macromoléculaires inorganiques
76.
ZIRCONIA OBJECT TO BE CUT FOR DENTAL CUTTING WORK AND METHOD OF MANUFACTURING ZIRCONIA OBJECT TO BE CUT, AND TRANSPARENCY IMPROVING LIQUID FOR ZIRCONIA OBJECT TO BE CUT FOR DENTAL CUTTING WORK AND METHOD OF MANUFACTURING TRANSPARENCY IMPROVING LIQUID
Provided is a zirconia fully sintered body that does not deform, said zirconia fully sintered body having superior translucency and chroma of color tone than a zirconia object to be cut for dental cutting work produced from a zirconia starting material powder containing various types of stabilizer, while maintaining high strength. This zirconia object to be cut for dental cutting work is a semi-calcined zirconia object to be cut for dental cutting work including a semi-calcined body of ceramic particles; said zirconia object to be cut for dental cutting work includes zirconium oxide, a stabilizer comprising an oxide, and a water soluble compound salt that is not an oxide and includes at least one element selected from calcium, magnesium and rare earth elements; the amount of the stabilizer in the semi-calcined body of ceramic particles is 2-7 mol%; and the amount of the water soluble compound salt in the zirconia object to be cut for dental cutting work is 0.1-3.5 mol%.
C04B 35/48 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zirconium ou d'hafnium ou de zirconates ou d'hafnates
A dental mill blank having a multi-layer structure has been required to improve the reproducibility of a color tone of the natural tooth in a dental crown restoration cut by CAD/CAM technique. Especially, a reproduction of the color tone of a cavity or a groove is required in a dental crown form of the molar tooth. The present dental mill blank has three or more layers wherein a color of a 30% position layer which includes a 30% position which is a position spaced from a surface of the dental mill blank of a W layer-side by 30% satisfies a specified relational expression, and a contrast ratio of the 30% position layer is within a range of the contrast ratio of the D layer×(0.70 to 1.00).
A mill blank for dental CAD/CAM for preparing a dental restoration by being installed in a CAD/CAM device, wherein, the mill blank for dental CAD/CAM has a columnar shape, has at least two recesses which includes a first recess opening to an upper surface of the mill blank and a second recess opening to a bottom surface of the mill blank and at least one notched portion in a circumference portion, the first recess and the second recess respectively include a first surface which is parallel to the upper surface and the bottom surface and a second surface which is a circumferential face concentric with the circumferential face of the mill blank and is vertical to the first surface, and the notched portion is composed of a surface parallel to the center axis of the columnar shape of the mill blank and contacts with the second surface.
To provide a mill blank for dental CAD/CAM containing a ceramic material for preparing a dental restoration by being installed in a CAD/CAM device, wherein, the mill blank for dental CAD/CAM comprises a ceramic portion in which a dental restoration is cut out and a resin portion which joins with a CAD/CAM device, the mill blank for dental CAD/CAM has a columnar shape, the resin portion is provided at a side surface of the ceramic portion and has a cylindrical shape or a belt shape, a ceramic portion side of the resin portion contacts with the side surface of the ceramic portion, the ceramic portion has a columnar shape, the ceramic portion has a protrusion part, an upper surface and a bottom surface of the columnar shape of the ceramic portion are parallel to each other, the mill blank for dental CAD/CAM has at least two recesses which includes a first recess and a second recess in a circumference portion, the first recess and the second recess respectively include a first surface which is parallel to the upper surface and the bottom surface and a second surface which is a circumferential surface concentric with the circumferential surface of the mill blank for dental CAD/CAM and is vertical to the first surface, and the at least two recesses are formed within the resin portion.
To provide a mill blank for dental CAD/CAM for preparing a dental restoration by being installed in a CAD/CAM device, wherein, the mill blank for dental CAD/CAM has a substantially columnar shape, the mill blank for dental CAD/CAM has at least one recess in a circumference portion, the recess does not extend over the whole of the circumference portion of the mill blank for dental CAD/CAM, and the recess of the mill blank for dental CAD/CAM is to be engaged with the CAD/CAM device.
To provide a dental temporary calcined body including an inside colored by a coloring material wherein, the inside of the dental temporary calcined body is colored by a coloring liquid containing the coloring material and a penetrant containing a permeating liquid.
To provide a dental lithium silicate glass composition capable of providing a dental lithium silicate glass ceramic capable of efficiently precipitating the main crystals (lithium disilicate and/or lithium metasilicate) even after heat treatment.
2: 0.0 to 5.0% by weight, a nucleating agent: 1.0 to 6.0% by weight, a glass stabilizer: 0.0 to 8.0% by weight and a colorant: 0.0 to 10.0% by weight.
C03C 3/097 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant du phosphore, du niobium ou du tantale
C03C 3/076 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice
C03C 10/04 - Phase cristalline de silicate ou polysilicate, p. ex. mullite, diopside, sphène, plagioclase
A61K 6/027 - Emploi d'éléments non métalliques ou de leurs composés, p.ex. de carbone
A61K 6/02 - Emploi de préparations pour la fabrication de dents artificielles, l'obturation ou le recouvrage des dents
A61C 5/77 - Procédés ou dispositifs pour la fabrication des couronnes dentaires
C03B 32/02 - Cristallisation thermique, p. ex. pour la cristallisation de produits vitreux en articles vitrocéramiques
C03C 4/00 - Compositions pour verres ayant des propriétés particulières
A61K 6/00 - Préparations pour la technique dentaire
To provide a two-paste type sealer composition for root canal filling consisting of a first paste containing a polymer (a) of an acid group-containing polymerizable monomer in which a portion or the entirety of the acidic group in a molecule forms a salt with an alkaline metal, a non-acid reactive powder (b) and water (c), wherein the pH of the first paste is in the range from 3.5 to 5.5, and a second paste containing an acid reactive inorganic powder (d), water (c) and a thickener (e), wherein, a cured product of a kneaded material of the first paste and the second paste comprises 3 to 20 part by weight of the polymer (a), 15 to 60 part by weight of the water (c), and 30 to 70 part by weight of the acid reactive inorganic powder (d).
To provide a sealer composition for root canal filling consisting of a liquid material containing a polymer (a) of an acid group-containing polymerizable monomer in which a portion or the entirety of the acidic group in a molecule forms a salt with an alkaline metal and water (b), wherein the pH of the liquid material is in the range from 3.5 to 5.5, and a powder material containing an acid reactive inorganic powder (c), wherein, a cured product of a kneaded material of the liquid material and the powder material comprises 3 to 20 part by weight of the polymer (a), 10 to 60 part by weight of the water (b), and 30 to 85 part by weight of the acid reactive inorganic powder (c).
A61K 6/70 - Préparations pour la technique dentaire comprenant des additifs inorganiques
A61K 6/889 - Ciments à base de polycarboxylateCiments à base de verre ionomère
90.
Block-like composite material for dental cutting and processing having multilayered structure including layers with different transparencies and containing fiber material
The present invention relates to a composite material which can be used as a dental prosthesis device (crown, bridge), and specifically, relates to a composite material including a curable resin and a fiber material, and more specifically relates to a block-like composite material for dental cutting and processing characterized by having a multilayered structure including at least two layers having different transparencies. There are no technical information relating to a color tone and a transparency of the fiber material. To provide a block-like composite material for dental cutting and processing, wherein the block-like composite material has a multilayered structure including at least two layers having different transparencies, and the each layer includes a curable resin and a fiber material.
A composite material including silanated filler and mixed polymerizable monomer, having a stable pasty property which keeps well and has a consistent usability. A composite material containing a silanated filler, a polymerizable monomer, and a polymerization initiator, and may be produced by a process which includes a mixed polymerizable monomer preparing step, a silanation step, a silanated filler preserving step, a composite material preparing step, a composite material preserving step, a composite material filling step, and a small quantity preserving container preserving step.
A61K 6/00 - Préparations pour la technique dentaire
B65B 3/00 - Emballage de matériaux plastiques, de semi-liquides, de liquides ou de liquides et solides mélangés, dans des réceptacles ou récipients individuels, p. ex. dans des sacs ou sachets, boîtes, cartons, bidons ou pots
A61K 6/02 - Emploi de préparations pour la fabrication de dents artificielles, l'obturation ou le recouvrage des dents
A61K 6/083 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
B29B 7/02 - MélangeMalaxage discontinu, avec dispositifs mécaniques de mélange ou de malaxage, c.-à-d. de type travaillant par charges
6-9 bridged cyclic hydrocarbon group via a methylene group optionally substituted with a hydrocarbon group in place of a hydrogen atom, the proportion of the number of acryloyl groups present in the urethane acrylate compound (A) being 10% to less than 90% relative to the total number of (meth)acryloyl groups in the monomer composition.
A61K 6/083 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
A61K 6/00 - Préparations pour la technique dentaire
C07C 271/20 - Esters des acides carbamiques ayant des atomes d'oxygène de groupes carbamate liés à des atomes de carbone acycliques avec les atomes d'azote des groupes carbamate liés à des atomes d'hydrogène ou à des atomes de carbone acycliques à des atomes de carbone de radicaux hydrocarbonés substitués par des atomes d'azote ne faisant pas partie de groupes nitro ou nitroso
Provided are dental polymerizable monomers that can give cured products having high toughness and high rigidity, dental polymerizable monomer compositions containing the polymerizable monomers, and dental compositions containing the dental polymerizable monomer compositions, and cured products thereof having high mechanical properties. The dental polymerizable monomer (A) which includes a urethane acrylate obtained from an appropriately rigid diisocyanate and an appropriately flexible hydroxyacrylate is used to prepare a dental polymerizable monomer composition containing the dental polymerizable monomer, and a dental composition containing the dental polymerizable monomer composition.
A61K 6/083 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
C07C 271/20 - Esters des acides carbamiques ayant des atomes d'oxygène de groupes carbamate liés à des atomes de carbone acycliques avec les atomes d'azote des groupes carbamate liés à des atomes d'hydrogène ou à des atomes de carbone acycliques à des atomes de carbone de radicaux hydrocarbonés substitués par des atomes d'azote ne faisant pas partie de groupes nitro ou nitroso
A61K 6/00 - Préparations pour la technique dentaire
94.
Multilayer resin material for dental milling and machining
A primer composition for a resin cured material according to the present disclosure comprising (A) a polymerizable monomer having a solubility parameter (an SP value) in the range of from 7.0 to 10.0, (B) a volatile organic solvent, (C) a polymerization catalyst and/or a polymerization accelerator, and (D) a polymerizable monomer having at least two polymerizable group.
In color reproduction for a dental restorative material, in order to achieve a color that closely matches the color of the natural tooth, one technique that is used is to form a mill blank by laminating layers of materials having different colors. However, misidentification of layers frequently occurs. The present invention is a dental mill blank having a plurality of layers and the dental mill blank has a visual identifying portion by which the plurality of layers are visually identifiable. The visual identifying portion may be provided by color or by structure. Providing the visual identifying portion by color refers to coloring the surface of a layer of the dental mill blank and providing the visual identifying portion by structure refers to forming microscopic or macroscopic irregularities in the entire periphery or part of a layer surface.
A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
97.
Dental restoration producing system for producing dental restoration from dental mill blank with through-hole, operation system of the system, program for the system, and dental mill blank for use in the system
A dental restoration producing system of producing a dental restoration from a dental mill blank with one or more through-holes according to one embodiment, when the dental restoration includes no through-hole of the dental restoration, the superposed data generating section generates a superposed data in which at least one through-hole of the dental mill blank is not superposed with the dental restoration, when the dental restoration includes a through-hole of the dental restoration, the superposed data generating section generates a superposed data in which at least one through-hole of the dental mill blank is not superposed with the dental restoration and the through-hole of the dental restoration, or a superposed data in which at least one through-hole of the dental mill blank is included in the through-hole of the dental restoration which is larger than the at least one through-hole of the dental mill blank.
09 - Appareils et instruments scientifiques et électriques
10 - Appareils et instruments médicaux
Produits et services
Digital cameras for use in dental fields. Cameras for use and documentation in dental and orthodontic
fields and in dental laboratories and for intraoral
photography.
99.
Filler characterized by acidic polymer treatment method
The present invention relates to a deagglomerated glass filler for sustained ion release for imparting ion sustained-release property to a dental material for use in the dental field. The dental material means a material for use in filling, prosthetic repair, temporary sealing, temporary bonding, preparation of a prosthetic appliance, adhesion/luting, pit and fissure sealing, or the like in a dental treatment. A glass filler for sustained ion release that sufficiently continuously releases a metal ion present in a glass composition as compared with a conventional glass filler for sustained ion release has been demanded in the field of a dental material. Such an object is achieved by a glass filler for sustained ion release that is obtained by performing a silane compound treatment step and an acidic polymer treatment step and that is controlled to satisfy a specific D50 particle size relationship in each of the steps.
A61K 6/00 - Préparations pour la technique dentaire
C03C 4/00 - Compositions pour verres ayant des propriétés particulières
C09C 3/12 - Traitement par des composés organiques du silicium
C03C 3/118 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant un halogène ou de l'azote contenant du fluor contenant du bore contenant de l'aluminium
C03C 12/00 - Poudre de verreCompositions pour billes en verre
C03C 17/34 - Traitement de surface du verre, p. ex. du verre dévitrifié, autre que sous forme de fibres ou de filaments, par revêtement avec au moins deux revêtements ayant des compositions différentes
The present invention provides a method for producing a composite material that comprises a silane-treated filler, a polymerizable monomer, and a polymerization initiator, said method being characterized by the sequential performance of the mixed polymerizable monomer preparation step, the mixed polymerizable monomer storage step, and the composite material production step that are described below. The mixed polymerizable monomer preparation step is a step in which the polymerizable monomer and the polymerization initiator are mixed in order to prepare a mixed polymerizable monomer. The mixed polymerizable monomer storage step is a step in which 1 to 50 liters of the mixed polymerizable monomer prepared in the mixed polymerizable monomer preparation step are stored under conditions that conform to a storage temperature of 1 to 23 °C and a storage period of 10 days to 1.5 years. The composite material production step is a step in which the mixed polymerizable monomer and the silane-treated filler are mixed in order to produce the composite material.
