PHOTOCURABLE COMPOSITION FOR MANUFACTURING TRANSPARENT ORTHODONTIC DEVICE HAVING SHAPE MEMORY CHARACTERISTICS USING 3D PRINTER AND TRANSPARENT ORTHODONTIC DEVICE HAVING SHAPE MEMORY CHARACTERISTICS USING SAME
The present invention relates to: a photocurable composition for manufacturing, using a 3D printer, a transparent orthodontic device having shape memory characteristics; and a transparent orthodontic device having shape memory characteristics, using same. The surface of CNC is modified to enable uniform mixing with the photocurable composition. A 3D-printed output produced using same may not only improve mechanical properties, but also improve transparency by enabling uniform mixing with the photocurable composition, and may exhibit shape memory behavior characteristics upon heat stimulation. In addition, a patient-customized transparent orthodontic device is provided by using the photocurable composition for 3D printing. As compared to existing photocurable compositions, printing accuracy may be further improved, thereby enabling the manufacture of a patient-customized transparent orthodontic device more precisely, and further improving an orthodontic effect by strengthening mechanical properties.
The present invention relates to a photocurable composition for manufacturing a patient-customized biliary stent by using a 3D printer, and a patient-customized biliary stent using same. A conventional photocurable composition for a 3D printer is hard and cannot be used as a biliary stent, but the photocurable composition for a 3D printer, of the present invention, can exhibit physical properties at levels enabling use as a biliary stent, and can be manufactured, using biocompatible material properties, as a stent customized for a patient requiring a biliary stent procedure.
A61L 31/06 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
A61F 2/82 - Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
A61F 2/04 - Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
3.
PHOTOCURABLE COMPOSITION FOR MANUFACTURING BILIARY STENT WITH SHAPE MEMORY PROPERTIES BY USING 3D PRINTER, AND BILIARY STENT WITH SHAPE MEMORY PROPERTIES, USING SAME
The present invention relates to a photocurable composition for manufacturing a biliary stent with shape memory properties by using a 3D printer, and a biliary stent with shape memory properties, using same. The surface of CNC is modified so as to be uniformly mixed in the photocurable composition, the mechanical properties of a 3D-printed output obtained using same are improved, and due to uniform mixing in the photocurable composition, transparency can be improved, and shape memory behavior characteristics can be exhibited in response to thermal stimulation. In addition, a patient-customized biliary stent using a photocurable composition for 3D printing is provided. Compared to a conventional photocurable composition, printing accuracy is further improved such that a biliary stent is manufactured more precisely, and mechanical properties are enhanced such that a patient-customized biliary stent can be provided.
The present invention provides a method for manufacturing a patient-customized dental prosthesis by means of a 3D printer, the method using a 3D printer to separately print patient-customized enamel and dentin shapes and joining same together to manufacture a prosthesis similar to an actual tooth, which can be used for prosthetic treatment. The prosthesis not only has an improved aesthetic appearance as described above, but also exhibits excellent mechanical strength. Thus, after prosthetic treatment, the prosthesis is not damaged by use.
The present invention relates to a novel dental prosthetic material and a patient-customized dental prosthesis comprising same, the material improving water resistance, reproducing a color similar to an actual tooth, and thus improving the aesthetic appearance even after prosthetic treatment. In addition, patient-customized prosthetic treatment can be performed using a 3D printer on a tooth requiring prosthetic treatment. The material exhibits enhanced physical properties compared to existing photocurable resin compositions and has excellent adhesive strength, thereby preventing a dental prosthesis from detaching after treatment.
C08F 283/00 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass
6.
DENTAL PROSTHESIS OR TEETH-STRAIGHTENING DEVICE CONTINUOUS PRODUCTION PROCESS USING 3D PRINTER, AND DENTAL PROSTHESIS OR TEETH-STRAIGHTENING DEVICE MANUFACTURED USING CONTINUOUS PRODUCTION PROCESS
The present invention relates to a dental prosthesis or teeth-straightening device continuous production process using a 3D printer, and to a dental prosthesis or a teeth-straightening device manufactured using the continuous production process. The present invention is for manufacturing a patient-customized dental prosthesis or teeth-straightening device by using 3D data on the oral structure of a patient, wherein a teeth-straightening device is manufactured using 3D printing, supporter separation, washing, post-curing, and heat treatment processes are performed in a continuous process, and the steps proceed by means of a robot without manual handling by a person during proceeding of the steps, thereby improving production efficiency and enabling defective products to be sorted out without additional equipment.
UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY (Republic of Korea)
Inventor
Sim, Un Seob
Kim, Hoon
Jang, Soon Ho
Choi, Sung Hwan
Kwon, Jae Sung
Mangal, Utkarsh
Abstract
The present invention relates to a coating composition comprising a zwitterion and a transparent orthodontic device surface-coated using same. By forming a coating layer on the surface of the transparent orthodontic device, the biocompatibility of the transparent orthodontic device can be increased, and thus inflammation can be reduced and compatibility with body tissues enhanced. In addition, the present invention relates to a transparent orthodontic device in which the attachment of microbial organisms and the formation of biofilms that can cause infections and complications can be prevented on the surface of the transparent orthodontic device having a coating layer formed by the coating composition.
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY (Republic of Korea)
Inventor
Sim, Un Seob
Kim, Hoon
Jang, Soon Ho
Choi, Sung Hwan
Kwon, Jae Sung
Mangal, Utkarsh
Abstract
The present invention relates to a coating composition comprising zwitterions and a transparent orthodontic device surface-coated using same. As a coating layer is formed on the surface of the transparent orthodontic device, biocompatibility of the transparent orthodontic device can be increased, thereby reducing inflammation and improving compatibility with body tissues. In addition, the present invention relates to a transparent orthodontic device which can prevent the formation of a biofilm capable of causing adhesion, infection, and complications of microbial organisms on the surface of the transparent orthodontic device on which a coating layer is formed by the coating composition.
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
C08F 230/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing phosphorus
The present invention relates to an apparatus for removing residual resin from 3D-printed matter and, more specifically, is characterized by being able to effectively remove resin remaining on the outer surface of 3D-printed matter by using centrifugal force by spinning the 3D-printed matter prior to post-curing.
The present invention relates to an embedded 3D printing system, and provides an ink composition that can be 3D printed using a DIW method. When printing using the DIW method, a printing matrix used includes fumed silica and silicone oil, such that that an ink composition with low viscosity can be stably printed, a structure is maintained even after printing is completed, and mechanical properties are enhanced.
B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
The present invention relates to a post-curing method for a 3D printout using a photo-curable composition and a transparent orthodontic appliance manufactured thereby, and the present invention aims to provide a post-curing process for a 3D printout, wherein the removal of the residual resin from an output, which is obtained using a photo-curable composition for 3D printing that can maintain a 3D-printable viscosity and exhibits properties suitable for use as a dental material, prevents the release of residual resin even during long-term use in the oral cavity, and the curing time is shortened due to an increase in curing rate by the post-curing process, enabling the production of a printout with enhanced strength and improved transparency. Also, the present invention aims to provide a transparent orthodontic appliance, which, when provided, can be free of residual resin and unreacted monomers of an output, show superb aesthetic impression through excellent transparency, exhibit enhanced strength, and offer excellent orthodontic effects and improved convenience of use due to shape memory properties during orthodontic treatment.
B29C 64/379 - Handling of additively manufactured objects, e.g. using robots
B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
The present invention relates to a method of manufacturing a transparent dental aligner having a surface coated with a coating composition containing zwitterions. As a coating layer is formed on the surface of the transparent dental aligner by using the coating composition, biocompatibility of the transparent dental aligner can be increased, thereby reducing inflammation and improving compatibility with body tissues. In addition, the coating layer formed on the surface of the transparent dental aligner by the coating composition can prevent the attachment of microbial organisms and the formation of biofilms which may cause infection and complications.
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
13.
METHOD FOR MANUFACTURING TRANSPARENT ORTHODONTIC DEVICE HAVING EXCELLENT BIOCOMPATIBILITY
The present invention relates to a method for manufacturing a transparent orthodontic device having excellent biocompatibility. Due to a coating layer being formed on the surface of the transparent orthodontic device by using the coating composition, biocompatibility of the transparent orthodontic device can be increased, thus reducing inflammation and improving compatibility with body tissues. In addition, it is possible to prevent the attachment of microbial organisms to the surface of the transparent orthodontic device on which the coating layer is formed by the coating composition, and the formation of biofilms that can cause infection and complications.
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
The present invention relates to a photocurable oligomer produceable as a photocurable composition for 3D printing so as to be capable of maintaining a 3D-printable viscosity and exhibiting physical properties for being usable as a dental material. In addition, the present invention, by applying 3D printing technology, may be produced so as to be outputted in a form suitable for the oral structure of a patient, may increase orthodontic force by having excellent mechanical properties, and when heat is provided, may have the shape thereof changed and restored, thereby increasing user convenience while being providable as various personalized dental products.
The present invention relates to a photocurable composition for a 3D printer, comprising zwitterions, and a transparent dental aligner comprising same. The photocurable composition, which can be used to manufacture a transparent dental aligner by means of a 3D printer, and the transparent dental aligner manufactured using the photocurable composition, comprise zwitterions, and thus can prevent the attachment of microbial organisms to the surface of the transparent dental aligner and the formation of biofilms thereon, which can lead to infections and complications. In addition, the transparent dental aligner can be manufactured by being output in a form suitable for the oral structure of a patient through the application of 3D printing technique, the transparent dental aligner has excellent mechanical properties, and thus can increase orthodontic force, and when heat is provided, the shape of the transparent dental aligner can be changed and restored such that high orthodontic efficacy can be exhibited.
C08F 230/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing phosphorus
C08F 220/28 - Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
The present invention relates to a retainer and a manufacturing method therefor, the retainer comprising a shape part output by a 3D printer so as to have the same shape as the teeth of a wearer, wherein the output shape part is coupled to the teeth of the wearer so as to stabilize the position of the orthodontic teeth. The retainer is output by the 3D printer so as to have the same shape as the teeth of the wearer, and is coupled to the teeth of the wearer and has excellent elasticity so as not to sustain fractures caused by chewing movements of the teeth, and can prevent the teeth of the lower jaw from spreading. The retainer can be closely coupled to the teeth of the wearer and, even after being worn, can prevent aesthetic deterioration caused by the retainer, and since the curve between the retainer and the teeth is gradual, teeth brushing by a patient using a toothbrush is facilitated such that tartar formation can be suppressed. In addition, the retainer can inhibit the growth of bacteria, and has material properties that can be adjusted through the addition of organic nano materials and/or inorganic nano materials.
The present invention relates to a continuous production method of a transparent orthodontic device and a transparent orthodontic device manufactured by the continuous production method, and has a purpose to manufacture a patient-customized transparent orthodontic device by using 3D data on an oral structure of a patient. By the present invention, the orthodontic device may be manufactured by 3D printing, and washing, supporter separation, post-curing, and heat treatment processing may be performed as continuous processes, so as to increase production efficiency and enable selection of defective products without using separate equipment. In addition, when the orthodontic device is manufactured by 3D printing, an output time can be shortened and curing efficiency can be increased, and when the orthodontic device is output, a barcode enabling recognition of unique information of the patient is output as well, so that a plurality of orthodontic devices can be continuously produced.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/386 - Data acquisition or data processing for additive manufacturing
The present invention relates to a method for manufacturing an antibacterial denture by using a three-dimensional printer, and an antibacterial denture manufactured using the manufacturing method. The antibacterial denture is manufactured using a three-dimensional photocurable composition containing an antibacterial material, so as to be suitable to the oral structure of a patient, and thus can have increased user convenience and can inhibit bacterial growth without separate cleaning by means of the antibacterial material.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
The present invention relates to a maxillary skeletal expander and a manufacturing method therefor. The maxillary skeletal expander is printed through 3D printing, can fit the oral cavity of a patient and be used on both the upper jaw and the lower jaw, and does not require a separate fixing device such as a screw, and thus does not require a separate fixing procedure. In addition, compared to conventional maxillary skeletal expanders, the maxillary skeletal expander generates less of a foreign body sensation during use and does not cause injuries in the oral cavity, and thus does not cause pain.
The present invention relates to an elastic material composition for photocurable 3D printing, having excellent mechanical properties. The composition is a one-pack type composition for a 3D printer, and enables 3D printing of an output that can exhibit, through an optimal combination of photocurable acrylate oligomers and monomers, excellent mechanical properties of a tensile strength of 6 MPa or more and an elongation at break of 200% or more. In addition, there is no problem of the elution of unreacted monomers after a 3D printed output is completely cured, and a method for manufacturing an elastic material that can exhibit excellent mechanical properties can be provided.
A method for post-curing a 3D printing output and a transparent orthodontic device manufactured by the method are described. The method for post-curing a 3D printing output removes residual resin from printouts manufactured through a 3D printer, shortens the curing time by improving the curing speed through a post-curing process, and can manufacture printouts with improved strength and increased transparency. The transparent orthodontic device removes resin of the surface through the post-curing process when manufacturing a transparent orthodontic device, improves strength, not only has excellent transparency, but also enables unreacted monomers to be removed, and can exhibit shape memory characteristics that restore its shape to the initially printed-out shape of the transparent orthodontic device by the provision of heat.
The present invention comprises a nanoclay in a photocurable composition for a 3D printer, wherein the nanoclay is uniformly distributed in the photocurable composition, and thus can increase the mechanical properties of a print-out printed by 3D printing and maintain the viscosity at which 3D printing is possible. In addition, 3D printing technology is applied to print a form that matches the oral structure of a patient, so that a transparent orthodontic device can be manufactured, the transparent orthodontic device has excellent mechanical properties, and thus can increase orthodontic force, and the shape thereof can be changed and restored when heat is provided, such that a high orthodontic effect can be exhibited.
The present invention relates to a device for post-curing a 3D-printed product, and, more specifically, the purpose of the present invention is to provide a nitrogen environment with minimized oxygen by supplying nitrogen into the device in a post-curing process, and, thereby, improve physical characteristics, such as rigidity, of a post-cured 3D-printed product.
The present invention relates to a device for post-curing a 3D-printed product. More specifically, the purpose of the present invention is to provide a nitrogen environment with minimized oxygen by supplying nitrogen into the device in a post-curing process and thereby to improve physical characteristics, such as strength, of post-cured 3D-printed products.
The present invention relates to a 3D printer photo curing composition and a preparation method therefor, the 3D printer photo curing composition additionally comprising nanoclay, being uniformly distributed so as to reinforce the mechanical properties of a printout output by 3D printing, and enabling a 3D-printable viscosity to be maintained. In addition, the photo curing composition is used for 3D printing so as to be output and manufactured in a form suitable for the oral structure of a patient, has excellent mechanical properties such that orthodontic force can be increased, and, during heat provision, enables shape changing and restoration so as to provide a transparent orthodontic device capable of exhibiting an enhanced orthodontic effect.
A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
The present invention relates to a retainer and a manufacturing method therefor, the retainer comprising a shape part output by a 3D printer so as to have the same shape as the teeth of a wearer, wherein the output shape part is coupled to the teeth of the wearer so as to stabilize the position of the orthodontic teeth. The retainer is output by the 3D printer so as to have the same shape as the teeth of the wearer, is coupled to the teeth of the wearer so as not to be broken by chewing motion of the teeth because of excellent elasticity, and can prevent the teeth of the lower jaw from spreading. The retainer can be closely coupled to the teeth of the wearer, and can prevent aesthetic deterioration caused by the retainer after being worn, and since the curve between the retainer and the teeth is gentle, teeth brushing by a patient using a toothbrush is facilitated such that tartar formation can be suppressed. In addition, the retainer can inhibit the growth of bacteria, and the material properties thereof can be adjusted by adding organic nano materials and/or inorganic nano materials thereto.
A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
B33Y 80/00 - Products made by additive manufacturing
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
27.
NOVEL ORGANIC COMPOUND AND PHOTOCURABLE COMPOSITION FOR 3D PRINTER COMPRISING SAME
The present invention relates to a novel organic compound and a photocurable composition for a 3D printer comprising same, in which, in the case of the composition, mechanical properties of an output product output by 3D printing can be enhanced and viscosity enabling 3D printing can be maintained. Furthermore, in the case of the composition, the output product may be manufactured by being output in a form suitable for the oral structure of a patient, and has excellent mechanical properties to enable increased orthodontic force. In addition, there is an advantage in that, when heat is provided, changes and restoration of shape are enabled to provide a transparent orthodontic device capable of exhibiting a high orthodontic effect.
The present invention relates to a patient-specific transparent orthodontic appliance printed by 3D printing. The transparent orthodontic appliance is printed through a 3D printer by using a photocurable composition comprising: a photocurable oligomer; a reactive monomer; a photoinitiator; and other additives, and the transparent orthodontic appliance relates to a patient-specific transparent orthodontic appliance using a 3D printer having a recovery rate of 90% or more through repeated creep tests at 37°C by using dynamic mechanical analysis (DMA). The transparent orthodontic appliance can be printed in a form suitable for a patient's oral structure, and when used in combination with teeth, the shape thereof can be deformed if heat is supplied, such that the transparent orthodontic appliance can be used in close contact with the tooth structure, and exhibit a high orthodontic force due to the feature of being restored to the original shape thereof by means of body temperature. In addition, as a transparent orthodontic appliance manufactured using shape memory polymers (SMPs), the shape memory polymers can exhibit low density, shape deformation at glass transition temperature, high elastic deformation, and stable biocompatibility, such that when used for orthodontic treatment, the transparent orthodontic appliance can lower a patient's pain and enables the orthodontic force to be exerted on the entire teeth so as to prevent the tilting of the teeth.
A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
A61L 27/50 - Materials characterised by their function or physical properties
Surgical and wound treating equipment, namely, medical devices for closing wounds, hemostatic suture instruments; surgical apparatus and instruments for medical, dental or veterinary use; test equipment for medical use, namely, medical diagnostic instrument for infectious disease testing; medical apparatus for use in minimally invasive surgery; implants comprised of artificial materials for dental purposes; dental articulators; prosthetic instruments for dental purposes; dental equipment, namely, dental bridges, sizers for gauging depth for measuring root canal, dental instruments for measuring root canal length; dental instruments, namely, instruments for measuring endodontic files, dental root files used in root canal therapy procedures, orthodontic headgear, orthodontic brackets, orthodontic appliances, orthodontic retainers, orthodontic braces, orthodontic rubber bands, and orthodontic machines and instruments for dental purposes; dental foundation supports; dental moulding devices, namely, dental bite trays, dental impression trays, devices in the nature of trays used for making molds of teeth; implant-supported bridges for dental purposes; dental apparatus, namely, intra-oral light systems, apex locator; dental bridges; oral irrigators for use in dentistry; teeth aligners; orthodontic machines and instruments for dental purposes; orthodontic instruments; jawbones orthodontic appliance
Surgical and wound treating equipment; medical apparatus and instruments; test equipment for medical use; medical apparatus; implants comprised of artificial materials for dental purposes; dental articulators; prosthetic instruments for dental purposes; dental equipment; dental instruments; dental foundation supports; dental moulding devices; implant-supported bridges for dental purposes; dental apparatus; dental bridges; devices [oral irrigators] for use by dentists in washing the gums; teeth aligners; orthodontic machines and instruments for dental purposes; orthodontic instruments; artificial jaws; implants [prosthesis] for use in jawbone surgery. Sterilizers for medical apparatus and instruments.
31.
POST-CURING METHOD OF 3D PRINTOUT, AND TRANSPARENT ORTHODONTIC APPLIANCE MANUFACTURED THEREBY
The present invention relates to a post-curing method of a 3D printout and a transparent orthodontic appliance manufactured thereby, wherein it is possible to remove residual resin in a printout produced by 3D printing, to reduce curing time through improvement of curing speed by a post-curing process, and to produce a printout with improved strength and increased transparency. In addition, when a transparent orthodontic appliance is manufactured, the resin on the surface is removed through a post-curing process, the strength is improved, the transparency is excellent, an unreacted monomer can be removed, and a shape memory characteristic may be exhibited wherein the transparent orthodontic appliance is restored to an initial printed-out shape thereof by applying heat.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
The present invention relates to a transparent orthodontic appliance having increased correctability, the transparent orthodontic appliance made to be patient-specific by means of 3D printing. In order to increase the correctability of teeth, a laminate having concavities and convexities engraved therein is adhered to the teeth, and the transparent orthodontic appliance having concavities and convexities embossed thereon is provided in a position to be complementarily coupled to the concavities and convexities of the laminate. Therefore, the correctability is increased by means of the complementary coupling of the concavities and convexities between the laminate and transparent orthodontic appliance.
B33Y 80/00 - Products made by additive manufacturing
A61C 7/16 - BracketsFixing brackets to teeth specially adapted to be cemented to teeth
A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
C08F 2/48 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
The present invention relates to a patient-customized denture using a 3D printer. As the patient-customized denture is suitable for a patient's oral cavity structure, user convenience is increased. As the patient-customized denture using a 3D printer has excellent physical properties and hygroscopic resistance, the patient-customized denture can be used permanently in the oral cavity. When damage occurs in a tooth part due to the use of the denture, it is possible to partially repair the damaged tooth part and replace the entire tooth part. When a bonding force with a gum part is weakened due to deformation of a gum state, it is possible to repair the gum part of the denture, such that an economic burden on a patient can be reduced. In addition, the patient-customized denture using a 3D printer is a fixed denture that can be used in combination with an implant placed in a patient's gums, and can be directly combined with the gum part of the denture without using a metal bar which is combined with a conventional implant and used to increase the physical strength of the denture. It is possible to partially repair the denture even when deformation occurs due to use.
The present invention relates to a patient-customized partial denture using a 3D printer, makes it possible to provide a partial denture that can be matched to a patient's missing tooth area using a 3D printer, and can produce color equivalent to that of the gums so as to prevent the problem of reduced esthetics due to the use of a partial denture. In addition, even if some shape deformation occurs due to the use of the partial denture, the patient can easily restore the partial denture to the original shape thereof, and even if some damage occurs, partial repair is possible using an output of the damaged part, and thus the convenience of the patient can be increased.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
The present invention relates to a photocuring resin composition having excellent water resistance. The photocuring resin composition has enhanced flexural strength due to enhanced flexural strength and absorbability, has water resistance and dimensional stability, and exhibits excellent workability and enables enhanced physical properties of the printed result when used for producing a 3D printed material by means of an SLA, DLP or LCD method. Also, the present invention relates to a photocuring resin composition, having excellent water resistance, which can be usefully and generally employed as a material for domestic and commercial 3D printers.
C08F 2/48 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
C08F 290/00 - Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
The present invention pertains to a photocurable composition for a 3D printer for producing a transparent orthodontic device. A photocurable composition for a 3D printer can be provided, which has excellent physical properties such as thermal properties, strength, elastic modulus, and tensile elongation, and when used in a patient-customized transparent orthodontic device, the orthodontic device can reduce the pain felt by patients and can enhance orthodontic correction effectiveness due to being closely fitted to the dental structure. Moreover, a 3D-printed transparent orthodontic device can be produced which can be restored to the original shape thereof even when deformed from use.
C09D 11/10 - Printing inks based on artificial resins
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
The present invention relates to a photo-curable composition for tooth restoration, wherein the composition can be provided as a patient-specific tooth restoration material through 3D printing, can be prepared to have various colors by using pigments, and can be used as a tooth restoration material having excellent aesthetic characteristics due to having the same colors as teeth. Furthermore, the present invention relates to a photo-curable composition for tooth restoration, which is excellent in moisture absorption resistance, strength, and elongation and thus can be permanently used and cause no cracks or breakage due to the occlusion pressure between teeth.
The present invention relates to a patient-customized orthodontic device using 3D printing, and an orthodontic method using same. The present invention enables movement of teeth without extraction during an orthodontic treatment process, and when attachments are used to enhance an orthodontic effect, the orthodontic effect can be enhanced regardless of the positions of the attachments attached to the teeth surfaces. In addition, the present invention has excellent physical properties such as thermal properties, strength, modulus of elasticity, and tensile elongation, so as to be provided as a patient-customized orthodontic device using a 3D printer, thereby reducing the pain of a patient, increasing an orthodontic effect by being seated in a teeth structure, and enabling a choice of transparent or the same color as the teeth.
The present disclosure relates to a photocurable polymer composition for 3D printing including: a UV-curable polyurethane oligomer; a photoinitiator; an oligomer; and a stabilizer. The photocurable polymer composition for 3D printing can produce a 3D printed product having excellent physical properties such as thermal properties, strength, elastic modulus and tensile elongation. In addition, the photocurable polymer composition can produce a 3D printed product which, even when the original shape thereof is deformed during use, can be restored to the original shape thereof.
C08F 2/46 - Polymerisation initiated by wave energy or particle radiation
C08F 2/50 - Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
C08G 61/04 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
The present invention relates to a top-down mode 3D printer and a method for producing a product using same, in which the degree of curing a photocurable polymer composition by means of irradiated light is high, and thus, the production time of a printed product can be shortened. In addition, as a product is printed in a top-down mode in which the product is produced by curing same from a top-end sectional area thereof, printing of a product having a larger top-end sectional area than a bottom-end sectional area is enabled, and, further, the range of a printable sectional area can be extended.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/255 - Enclosures for the building material, e.g. powder containers
The present invention relates to a post-curing process for a 3D printed product and a device therefor, wherein remaining resin can easily be removed without requiring direct cleaning by a user, and, by a UV post-curing process, the curing speed can be improved and a printed product with improved strength can be manufactured. In addition, when manufacturing a transparent 3D printed product, transparency and strength are improved by the post-curing process, and a printed product with excellent product properties can be manufactured.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
The present disclosure relates to a photocurable composition for 3D printing for producing a patient-specific splint or cast. The photocurable composition easily produces a splint or cast conforming to the patient's body shape using 3D printing and makes it possible to adjust the immobilizing force of the splint or cast. In addition, the present disclosure provides a patient-specific splint or cast using a photocurable composition for 3D printing, which may produce a splint or cast, which may provide a necessary degree of compression by adjusting the immobilizing force thereof and is attachable and detectable as needed.
