# US 10,245,125 B2 · Method for duplicating a denture > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,125 B2 - Document ID: US10245125B2 - Status: Granted - Kind: B2 - Application number: 15/601,203 - Filed: 2017-05-22 - Published: 2018-11-22 - Granted: 2019-04-02 - Earliest claimed: 2017-05-22 - Assignees: Imam Abdulrahman Bin Faisal University - Applicants: Imam Abdulrahman Bin Faisal University - Inventors: Ahmad Maniallah H. Althobity - Web page: https://patentgrep.com/patent/US10245125B2 ## CPC - A61C 13/081: {Making teeth by casting or moulding} - A61C 8/0001: {Impression means for implants, e.g. impression coping} - A61C 13/0006: {Production methods} - A61C 13/01: Palates or other bases or supports for the artificial teeth; Making same - A61C 13/087: Artificial resin teeth {(A61C13/081 takes precedence; preparations A61K6/80)} - A61C 13/10: Fastening of artificial teeth to denture palates or the like {(A61C8/0048 takes precedence)} - A61C 13/20: Methods or devices for soldering, casting, moulding or melting {(A61C13/04, A61C13/081 take precedence)} - A61C 13/34: Making or working of models, e.g. preliminary castings, trial dentures; Dowel pins [4] - A61C 8/0095: {Total denture implant} - A61C 9/00: Impression cups, {i.e. impression trays}; Impression methods {(computer-assisted sizing A61C13/0004; instruments for determining occlusion A61C19/05)} - A61C 9/0006: {Impression trays} - B32B 27/26: using curing agents - B32B 27/28: comprising synthetic resins not wholly covered by any one of the sub-groups {B32B27/30 - B32B27/42} - A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ## Abstract The fabrication of an implant-supported fixed complete denture involves multiple clinical and laboratory steps. One of the main steps is to provide the patient with an interim fixed prosthesis to evaluate the patient's esthetic and function al needs as well as to enhance the patient's psychology before proceeding to the definitive prosthesis. Different techniques for fabricating interim prostheses have been described in the literature. This disclosure describes a method of fabricating an implant-supported fixed interim prosthesis using self-curing acrylic resin. The interim prosthesis may be used as a blueprint for the definitive implant-supported hybrid prosthesis. ## Claims ### Claim 1 A process for forming a duplicate denture, the process comprising: obtaining an intermediate denture comprising teeth and a gum portion; removing the teeth of the intermediate denture thereby exposing a part of the gum portion; applying an adhesive to the exposed part of the gum portion; filling a first portion of a mold of an original denture with a first resin; placing the gum portion of the intermediate denture into a second portion of the mold; placing the first portion and the second portion of the mold in a contiguous matching relationship thereby contacting the exposed part of the gum portion with the first resin; and polymerizing the first resin thereby forming a duplicate denture. ### Claim 2 (depends on 1) The process of claim 1, wherein the teeth of the intermediate denture are removed to a gum line of the intermediate denture, and the exposed part of the gum portion comprises a plurality of concave sections angled away from the gum portion. ### Claim 3 (depends on 2) The process of claim 2, wherein the plurality of concave sections comprises a plurality of grooves. ### Claim 4 (depends on 3) The process of claim 3, wherein an average distance between each groove is 1-5 mm. ### Claim 5 (depends on 3) The process of claim 3, wherein each groove is V-shaped or U-shaped. ### Claim 6 (depends on 1) The process of claim 1, wherein the intermediate denture is made by a process comprising: filling the mold of the original denture, which has impressions of a tooth portion and a gum portion of the original denture, with a second resin; and polymerizing the second resin thereby forming the intermediate denture comprising the teeth and the gum portion. ### Claim 7 (depends on 6) The process of claim 6, wherein the first resin and the second resin comprise an acrylate, nylon, or both. ### Claim 8 (depends on 7) The process of claim 7, wherein the first resin and the second resin comprise the acrylate. ### Claim 9 (depends on 8) The process of claim 8, wherein the first resin and the second resin are independently selected from the group consisting of a heat-curing resin, a self-curing resin, a light-curing resin, and a microwave-curing resin. ### Claim 10 (depends on 1) The process of claim 1, wherein the mold is formed by a process comprising: embedding a tooth portion of the original denture in a first molding material; embedding a gum portion of the original denture in a second molding material; and setting the first molding material and the second molding material thereby forming the mold. ### Claim 11 (depends on 10) The process of claim 10, wherein the first molding material and the second molding material comprise at least one selected from the group consisting of zinc oxide eugenol, alginate, a polyether, and a silicone. ### Claim 12 (depends on 11) The process of claim 11, wherein the first molding material and the second molding material comprise the silicone. ### Claim 13 (depends on 12) The process of claim 12, wherein the silicone is a condensation-cured silicone. ### Claim 14 (depends on 10) The process of claim 10, wherein the first molding material is placed in a first half of a flask or a first impression tray, and the second molding material is placed in a second half of the flask or a second impression tray. ### Claim 15 (depends on 14) The process of claim 14, wherein the flask is a denture duplicator flask. ### Claim 16 (depends on 15) The process of claim 15, further comprising closing the denture duplicator flask before the setting of the first molding material and the second molding material. ### Claim 17 (depends on 1) The process of claim 1, further comprising: cutting an incisal edge of at least one tooth in the duplicate denture thereby forming a cut enamel portion; and applying a third resin and optionally a fourth resin to the cut enamel portion thereby smoothing the at least one tooth. ### Claim 18 (depends on 17) The process of claim 17, wherein the fourth resin is present, the process further comprises mixing the third resin with the fourth resin prior to applying to the cut enamel portion. ### Claim 19 (depends on 18) The process of claim 18, wherein the third resin and the fourth resin comprise an acrylate, nylon, or both. ### Claim 20 (depends on 19) The process of claim 19, wherein the third resin and the fourth resin comprise the acrylate.