A composite filler comprising thermally processed porous inorganic mixed particles of silica and at least one heteroparticle selected from the group consisting of zirconia, hafnia, or yttria and a polymer occupying the pores of the porous inorganic mixed particles, wherein the porous inorganic mixed particles are thermally processed at a temperature of from 650 to 900° C., as well as a dental restorative comprising a resin and a composite filler, and optionally other fillers, wherein said resin has a refractive index that increases upon curing, and wherein the opacities of the both uncured and cured restorative are less than 45.
Described herein are directed to dental filler particles and methods of making the same. The dental filler particles include a polymer coating with a plurality of ethylenically unsaturated groups on the surface of the coating. Also described herein are dental restorative materials comprising the particles.
Described herein are directed to dental filler particles and methods of making the same. The dental filler particles include a polymer coating with a plurality of ethylenically unsaturated groups on the surface of the coating. Also described herein are dental restorative materials comprising the particles.
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
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
A dental device includes a device-managing system configured to dynamically perform a setting of a value of a device operational parameter based on an electrical signal generated by a sensor. The tool can be a rotary tool and the system includes a clutch system configured to disengage a tool from mechanical association with a drive mechanism when a force is above a preset threshold. The clutch system optimizes rotary speed or torque for a tool. The adjustment of tool motion is provided by a preset tool profile and by detecting a property of the tool as a measure predictive of likelihood of tool failure. A rotary handpiece engages a dental tool, the handpiece configured to releasably engage the dental tool associated with a drive mechanism.
A rotary-motion-based handpiece for use in endodontic and/or dental procedures is provided. The handpiece includes a head gear assembly. The head gear assembly includes a chuck. The handpiece is configured to engage a rotary instrument or tool. The rotary instrument is engaged in the chuck. The handpiece includes a cover disposed on top of the head gear assembly. The rotary instrument applies a force directed toward the cover. Within the cover is disposed a sensing portion A strain gauge is coupled to the sensing portion and generates a signal corresponding to a magnitude of a strain induced in the sensing portion by the force. Operation parameters of the handpiece are set on the basis of the signal.
A dental obturator includes a storage body defining an internal cavity to store endodontic filling material, at least a portion of the storage body being adjustable to control a volume of endodontic filling material in the storage body. The obturator further includes an elongated, hollow tube extending from the storage body and in fluid communication with the internal cavity.
A61C 5/50 - Instruments pour obturer les canaux radiculairesProcédés ou instruments pour le traitement du canal du nerf de la dent
A61C 5/55 - Instruments pour obturer les canaux radiculairesProcédés ou instruments pour le traitement du canal du nerf de la dent avec des moyens de chauffage, p. ex. pour chauffer la gutta-percha
A61C 5/40 - Instruments pour le traitement chirurgical des racines ou des nerfs dentairesAiguilles pour retirer le nerfProcédés ou instruments pour le traitement des racines
A composite filler comprising thermally processed porous inorganic mixed particles of silica and at least one heteroparticle selected from the group consisting of zirconia, hafnia, or yttria and a polymer occupying the pores of the porous inorganic mixed particles, wherein the porous inorganic mixed particles are thermally processed at a temperature of from 650 to 900° C., as well as a dental restorative comprising a resin and a composite filler, and optionally other fillers, wherein said resin has a refractive index that increases upon curing, and wherein the opacities of the both uncured and cured restorative are less than 45.
A tool recognition system recognizes a tool selected for a surgical procedure. The tool includes a distal portion configured to perform at least part of the surgical procedure and a proximal portion including a first electronic module that stores tool-identifying electronic information. A surgical handpiece is configured to receive the tool and includes a second electronic module configured to communicate electronically with the first electronic module when tool is disposed in the handpiece. The first electronic module includes a coil that is configured as a radio- frequency identification (RFID) tag antenna. The second electronic module includes a coil that is configured as a radio-frequency identification (RFID) interrogator antenna. In one embodiment, the first electronic module is a transponder that includes a RFID chip and a RFID antenna. Another embodiment includes a surgical tool recognition system for a drill and the tool includes a file.
The present disclosure relates to the field of endodontic instrumentation, and more particularly to apparatus and methods for manufacturing that include applying a variable heat-treat to an endodontic file blank based on geometric parameters that will be formed in the blank.
A61C 5/42 - Limes pour canaux radiculairesPoignées ou moyens de guidage pour celles-ci
C22C 19/00 - Alliages à base de nickel ou de cobalt, seuls ou ensemble
C22F 1/00 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid
A61B 17/16 - Instruments pour réaliser une ostéoclasieForets ou ciseaux pour osTrépans
B24B 19/04 - Machines ou dispositifs conçus spécialement pour une opération particulière de meulage non couverte par d'autres groupes principaux pour meuler des gorges, p. ex. sur des arbres, dans des gaines, des tubes, des éléments de joint homocinétique pour canneler les queues de forets
24.
ELECTRONICALLY-RECOGNIZABLE TOOL AND ELECTRONIC TOOL RECOGNITION SYSTEM FOR DENTAL DEVICES AND ELECTRONIC TOOL RECOGNITION METHOD THEREOF
A tool for use with an electronic tool recognition system includes a tool blank and a proximal handle encasing a proximal end of the tool blank. A tool-identifying apparatus includes a resonator embedded in the tool blank to provide a tool identifier. A conductive wire in electrical contact with the resonator provides the identifier to a processor. In another arrangement, conductive brushes in contact with slip rings provide the identifier to a processor. In another arrangement, a dental tool handle includes an insulating portion defining a recess to receive a sensor or an information-managing chip. In another arrangement, a dental tool detection system receives a measured value of an electrical property associated with the dental device without a dental tool attached and separately with the dental tool attached. A processor determines a value of the electrical property associated with the dental tool to recognize the type of tool.
A61B 90/98 - Moyens d’identification pour les patients ou les instruments, p. ex. étiquettes utilisant des moyens électromagnétiques, p. ex. transpondeurs
A tool recognition system includes a tool and a dental drill. The tool includes a fluted portion and a shank portion. The tool has one or more colored identifiers at least partially circumscribing a part of the shank portion. The dental drill includes a tool rotating portion, a light transmitter located in the tool rotating portion, and a light sensor. With the tool removably coupled to the tool rotating portion, the one or more colors present a sequence of one or more colors to the light sensor for identifying the tool to the light sensor when the tool rotates a predetermined number of turns. The dental drill includes a handpiece and a console in another embodiment.
A curing light device includes a body with a tip portion that has a plurality of elements for providing electrical energy to the distal end of the tip and for removing heat from the distal end of the tip. A light engine includes at least one light emitting element operable for emitting light and is positioned on the distal end of the tip portion. A power supply is positioned in the body and is rechargeable and includes at least one ultracapacitor element. Spring electrical contacts are positioned in the body and electrically coupled with the ultracapacitor element. The spring electrical contacts are spaced along the length of the body and configured for electrically engaging the tip portion along its length for delivering power to the light engine and for provide a spring alignment of the tip portion in the body.
Apparatus and methods for a fluted endodontic file are provided. The apparatus may include a fluted endodontic file defining a central longitudinal axis. The fluted endodontic file may include a working length extending along the central longitudinal axis. The working length may include a single flute. The working length may define an off-center cross-section having three vertices.
Dental instruments, including dental curing light systems comprised of curing lights, light guides, battery packs and chargers, and protective light shields.
38.
DENTAL IMPRESSION INJECTION TRAYS AND RELATED SYSTEMS AND METHODS
A dental impression injection tray (10, 10a, 10b, 100, 120, 140, 160, 180) for forming a dental impression of a dental structure (1, 2, 3) includes a tray body (12, 102, 122, 142, 166, 182) defining an impression cavity (14, 103, 123, 149, 168, 184) sized to receive the dental structure. At least one injection port (16, 20, 105, 150, 170, 186) is formed on the tray body and communicates with the impression cavity, and is adapted to direct a supply of impression material into the impression cavity. A plurality of gingival sealing elements (30-36, 30a-36a, 30b-36b, 106-112, 126-132, 154-158, 185, 194, 196) are coupled to the tray body and are adapted to sealingly engage gum surfaces adjacent to the dental structure and block the impression material from escaping the impression cavity during injection of the impression material into the impression cavity. A system (210) for forming a dental impression may include the dental impression injection tray (212), an impression material delivery device (214), and a pressure control mechanism (214, 218, 220) that controls a pressure of the impression material inside of the impression cavity.
Endodontic systems; endodontic systems including one or more of rotary files, glide path files, orifice openers, gutta percha points, paper points, verifiers and obturators; endodontic system primarily comprised of rotary files, glide path files, orifice openers, gutta percha points, paper points, verifiers and obturators.
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
Dental materials, namely, impression compounds, dental
waxes, investment compounds for use in the investment
casting of dental articles, plaster of Paris for use in the
creation of dental articles, sealing agents for dental
purposes. Dental instruments, namely, pulp-canal instruments, broach
holders, mouth-mirrors, handles for dental instruments,
articulators, dental spatulas, engine-drills; dental
impression trays.
Devices and methods for dispensing material from a dental handpiece. In one example, the method includes receiving an input that indicates that an amount of the material is to be dispensed from the container of the dental handpiece. The method also includes rotating an electric motor to rotate an imbalanced mass to vibrate a vibration transmission element that vibrates the material in the container. The method also includes dispensing the amount of the material from the container with a piston based on the input.
A dental restorative composition is provided that includes a polymerizable resin, a substantially translucent structural filler, a nanofiller having a mean particle size less than 100 nm, and at least one rheology-modifying additive. In one embodiment, the structural filler has a refractive index substantially similar to that of the polymerizable resin, a coarse particle fraction, and a fine particle fraction having a mean particle size greater than 0.1 μm and smaller than the mean particle size of the coarse particle fraction. The relative ratio of the coarse particle fraction to the fine particle fraction is in the range from about 12:1 to about 2:1 by volume, the particle size distribution of each fraction is essentially monomodal, and the D(90) of the fine particle fraction is less than or equal to the D(10) of the coarse particle fraction.
An interproximal dental tool for use by dental practitioners which contains several significant improvements over prior art interproximal dental tools which has an upper surface extending to a sidewall and a body section which in turn grasps a razor or blade member having a blade extending outwardly from the interproximal dental tool and which is placed between the patient's teeth to grind portions of teeth between two adjacent teeth. The tool is used for professional practice only and not by consumers. The significant improvements over the prior art interproximal dental tools are as follows: The exterior top surface and the exterior side surfaces of the present invention interproximal dental tool are made of grippable material which is primarily made of rubber.
Provided is prophylaxis cup for dentistry, comprising a first section storing a first medium, a second section storing a second medium, and one or more channels between the first section and the second section, wherein the first section, the second section and the one or more channels are adapted to allow the first medium and the second medium to be mixed, in response to a rotational movement of the prophylaxis cup. Provided also is a method for using prophylaxis cup in which the prophylaxis cup is positioned on a patient's tooth. A control is triggered to rotate the prophylaxis cup to cause a first medium stored in a first section of the prophylaxis cup to be mixed with a second medium stored in a second section of the prophylaxis cup. Provided further is a prophylaxis angle for dentistry, comprising a hand-piece, with the prophylaxis cup coupled to the hand-piece.
A61C 17/00 - Dispositifs pour nettoyer, polir, rincer ou sécher les dents, les cavités dentaires ou les prothèsesAppareils pour enlever la saliveRéceptacles pour les crachats à usage dentaire
A dental restorative composition is provided that includes a polymerizable resin, a substantially translucent structural filler, a nanofiller having a mean particle size less than 100 nm, and at least one rheology-modifying additive. In one embodiment, the structural filler has a refractive index substantially similar to that of the polymerizable resin, a coarse particle fraction, and a fine particle fraction having a mean particle size greater than 0.1 μm and smaller than the mean particle size of the coarse particle fraction. The relative ratio of the coarse particle fraction to the fine particle fraction is in the range from about 12:1 to about 2:1 by volume, the particle size distribution of each fraction is essentially monomodal, and the D(90) of the fine particle fraction is less than or equal to the D(10) of the coarse particle fraction.
The dental resin modified glass-ionomer composition includes an acidic polymer; an acidic polymerizable monomer selected from 4-(meth)acryloxyalkyltrimellitic anhydride, 4-(meth)acryloxyalkyltrimellitic acid, and a combination thereof; a non-acidic polymerizable monomer; a fluoroaluminosilicate glass filler; water; and at least one polymerization initiator system. The dental resin modified glass-ionomer composition is useful for a dental restorative composition, an endodontic composition, and/or an orthodontic composition, and provides significantly enhanced adhesive property toward tooth structure.
A light device includes a body and a tip structure configured to be removably coupled with the housing. The tip includes a light engine that is operable for emitting light positioned at a distal end of the tip. A power supply circuit is positioned in the housing and coupled to the light engine. The power supply circuit is rechargeable and includes at least one ultracapacitor element. A non-imaging element is coupled with the light engine at the distal end.
B60Q 1/06 - Agencement des dispositifs de signalisation optique ou d'éclairage, leur montage, leur support ou les circuits à cet effet les dispositifs étant principalement destinés à éclairer la route en avant du véhicule ou d'autres zones de la route ou des environs les dispositifs étant des phares réglables, p. ex. commandés à distance de l'intérieur du véhicule
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
Produits et services
(1) Plastic film materials, namely, adhesive barrier films for application to tools and equipment, for purposes of infection control, for use in dental and medical offices, hospitals and laboratories.
Plastic film materials, namely, adhesive barrier films for application to tools and equipment, for purposes of infection control, for use in dental and medical offices, hospitals and laboratories
A dental adhesive composition comprising (i) at least one non-acidic polymerizable monomer having at least one ethylenically unsaturated group, (ii) optionally one or more acidic compounds, (iii) at least one photoinitiator, (iv) at least one solvent, and (v) about 0-40% by weight of one or more fillers; wherein the weight ratio of non-acidic polymerizable monomers/acidic compounds in the adhesive composition is more than about 4.5; the viscosity of the adhesive composition is less than about 350 centipoise (cP) at 25° C.; and the adhesive composition excluding solvent and filler has an acid number of less than about 0.75 mmol NaOH/g. The dental adhesive composition is used with a dental primer composition, which may be provided together in a kit.
A61L 2/08 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contactAccessoires à cet effet utilisant des phénomènes physiques des radiations
B29C 71/04 - Post-traitement d'objets sans modification de leur formeAppareils à cet effet par énergie ondulatoire ou rayonnement corpusculaire
C08F 2/46 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire
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
A dental restorative composition is provided that includes a polymerizable resin, a substantially translucent structural filler, a nanofiller having a mean particle size less than 100 nm, and at least one rheology-modifying additive. In one embodiment, the structural filler has a refractive index substantially similar to that of the polymerizable resin, a coarse particle fraction, and a fine particle fraction having a mean particle size greater than 0.1 μm and smaller than the mean particle size of the coarse particle fraction. The relative ratio of the coarse particle fraction to the fine particle fraction is in the range from about 12:1 to about 2:1 by volume, the particle size distribution of each fraction is essentially monomodal, and the D(90) of the fine particle fraction is less than or equal to the D(10) of the coarse particle fraction.
A self-cure, dual-cure or tri-cure polymerizable dental composition is provided with at least one functional chemical. The dental composition is divided into a three-part composition to avoid stability issues caused by degradation and/or loss of function of one component in the extended presence of another component, and the three parts are packaged in a tri-barrel syringe or cartridge delivery system to avoid premature chemical interaction between the functional chemical, redox initiator and/or acid/base.
A self-cure or dual-cure polymerizable dental composition is provided with a redox indicator. The composition exhibits an initial first color upon mixing of the two parts and then changes to a second color that is noticeably different from the first color during the curing or polymerization of the composition initiated through the redox initiator system. Advantageously, the first color may be distinctively different from tooth structure and can be easily noticed. The second color may be essentially colorless, a neutral color, or a non-visually observable color in reference to the tooth structure.
A dental paste dispensing device having a modified dispensing end for atraumatic contact with soft tissue is disclosed. The dispensing device has a needle with an attachment end adapted to be attached to a capsule containing the dental paste and a dispensing end with a terminal edge for dispensing the dental paste to a location in a patient mouth containing soft tissue, wherein the dispensing end includes an atraumatic modification. The modification is a plastic tip member over the dispensing end having a flattened static position and a rounded dynamic position.
An optical loupe includes an electromechanical apparatus for varying the magnification of objects viewed through the loupe and or varying a working distance of the loupe. In another embodiment, an optical loupe may include a lens system comprising one or more liquid lens assemblies or liquid crystal lens assemblies for providing variable magnification.
G02B 15/14 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif
A dental adhesive composition comprising (i) at least one non-acidic polymerizable monomer having at least one ethylenically unsaturated group, (ii) optionally one or more acidic compounds, (iii) at least one photoinitiator, (iv) at least one solvent, and (v) about 0-40% by weight of one or more fillers; wherein the weight ratio of non-acidic polymerizable monomers/acidic compounds in the adhesive composition is more than about 4.5; the viscosity of the adhesive composition is less than about 350 centipoise (cP) at 25° C.; and the adhesive composition excluding solvent and filler has an acid number of less than about 0.75 mmol NaOH/g. The dental adhesive composition is used with a dental primer composition, which may be provided together in a kit.
A dental restorative composition comprises: (A) polymerizable monomer(s) selected from hydroxyethyl (meth)acrylate phosphate, hydroxypropyl (meth)acrylate phosphate, hydroxybutyl (meth)acrylate phosphate, dipentaerythritol penta(meth)acrylate phosphate, pentaerythritol tri(meth)acrylate phosphate, phenyl (meth)acryloxyethyl phosphate, and a combination thereof; (B) polymerizable monomer(s) having a molecular weight of 100-250, at least one hydroxyl group, and at least one ethylenically unsaturated group; (C) polymerizable monomer(s) having a molecular weight of 270-900, at least two ethylenically unsaturated groups and no acidic functional group; (D) photo-initiator(s); and (E) filler(s) each having a mean particle size of more than 0.005 microns and less than 70 microns. The weight ratio of (A+B):(C) ranges from 30:70 to 90:10, and the composition has a shear bond strength of at least 10MPa to both dentin and enamel after being light-cured.
A61K 6/083 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
A61K 6/08 - Emploi de résines naturelles ou synthétiques
C08F 2/50 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible avec des agents sensibilisants
In one aspect, a user-wearable illumination assembly (10) includes eyeglass frames (12) and a headlamp (20) removably coupled to the eyeglass frames (12). Electrical circuitry (58) may be integrated with the eyeglass frames (12). The headlamp (20) and the eyeglass frames (12) have mounting structure (22, 26) that cooperate to removably support the headlamp (20) thereon. A light source (36) is disposed within the headlamp (20) and electrical communication between the light source (36) and the electrical circuitry (58) of the eyeglass frames (12) is provided by electrical contacts (40,42) associated with the mounting structures (22, 26) of the headlamp (20) and eyeglass frames (12). In another aspect, a user-wearable illumination assembly (210) for use with eyeglass frames (212) includes a clip assembly (230) that is selectively removably couplable to a bridge portion (214) of the eyeglass frames (212), and a headlamp (240) coupled to the clip assembly (230). The illumination assembly (210) further includes a battery (260, 260b) that is selectively removably couplable to the eyeglass frames (212) and at least one electrical conductor (272a, 272b) coupling the battery (260a, 260b) to the headlamp (240).
A61B 1/06 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p. ex. endoscopesDispositions pour l'éclairage dans ces instruments avec dispositifs d'éclairement
F21V 33/00 - Combinaisons structurales de dispositifs d'éclairage avec d'autres objets, non prévues ailleurs
A one-component self-etching self-priming dental adhesive composition is disclosed. The composition comprises glycerol phosphate di(meth)acrylate monomer, at least one mono-functional polymerizable monomer having just one ethylenically unsaturated group, at least one multi-functional polymerizable monomer having at least two ethylenically unsaturated groups, at least one aprotic solvent, at least one protic solvent, and at least one polymerization initiator.
A61K 6/083 - Composés obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
C08J 3/28 - Traitement par ondes énergétiques ou par rayonnement de particules
C08F 2/50 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible avec des agents sensibilisants
C08F 2/46 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire
A light device 10 includes a housing 12 and a tip structure 14 configured to be removably coupled with the housing 12. The tip structure 14 includes a light-emitting device 40 that is operable for emitting light positioned at a distal end 24 of the tip structure 14 and a body 36 for housing the light-emitting device 40. The tip structure 14 is formed of an autoclavable material capable of withstanding autoclaving, A power supply circuit 28 is positioned in the housing 12 and coupled to the light-emitting device 40 to power the device when the tip structure 14 is coupled with the housing 12. The power supply circuit 28 is rechargeable and includes at least one ultracapacitor element 90 for being charged and the power supply circuit 28 configured to discharge the ultracapacitor 90 as a current source to drive the at least one light-emitting device 40.
