# US 11,439,485 B2 · Mounting element for production of a dental prosthesis, a prosthesis and method of manufacturing same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,439,485 B2 - Document ID: US11439485B2 - Status: Granted - Kind: B2 - Application number: 16/624,197 - Filed: 2018-06-19 - Published: 2020-07-09 - Granted: 2022-09-13 - Earliest claimed: 2017-06-20 - Assignees: Jade Finance S.A.R.L. - Applicants: Jade Finance S.A.R.L. - Inventors: Jacques Hornbeck - Web page: https://patentgrep.com/patent/US11439485B2 ## CPC - A61C 13/0013: {using stereolithographic techniques} - A61C 13/12: Tools for fastening artificial teeth; Holders, clamps, or stands for artificial teeth {(A61C8/0089 takes precedence)} - A61C 13/0004: {Computer-assisted sizing or machining of dental prostheses} - A61C 13/0019: {using three dimensional printing} - A61C 13/0022: {Blanks or green, unfinished dental restoration parts} - A61C 13/26: {Dentures without palates; Partial dentures, e.g. bridges} - B33Y 10/00: Processes of additive manufacturing - B33Y 80/00: Products made by additive manufacturing - 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) - B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING ## Abstract A mounting element for a dental prosthesis, the prosthesis including at least one bridge, the mounting element and prosthesis being formed using 3D printing, where the mounting element has an axis of elongation and comprises an engagement portion, for fixedly engaging the prosthesis and an attachment portion, for enabling secure attachment of the prosthesis to the jig during machining, the mounting element further comprises a registration portion for aligning, in use, the prosthesis in a precise position and/or orientation on a jig during machining, the registration portion comprises a tapering portion having a conically tapering outer surface. ## Claims ### Claim 1 A mounting element for a dental prosthesis, the prosthesis including at least one bridge, the mounting element and prosthesis being formed using 3D printing, the mounting element having an axis of elongation and comprising: an engagement portion, configured for fixedly engaging the prosthesis; a registration portion configured for aligning, in use, the prosthesis in a precise position and/or orientation on a jig during machining; an attachment portion, configured for enabling secure attachment of the prosthesis to the jig during said machining, said attachment portion includes an axially extending elongate lower recess portion, the lower recess portion being configured to receive, in use, a fixing element, for fixedly attaching the prosthesis to the jig; wherein the registration portion comprises a tapering portion having a conically tapering outer surface; and the mounting element further comprises sidewalls extending parallel to the axis of elongation, the sidewalls being configured for guiding, in use, an upper portion of the fixing element into a transversely extending upper recess portion, the upper recess portion includes endwalls in planes parallel to the axis, the endwalls being configured for receiving, in use, a correspondingly-shaped part of the upper portion of the fixing element into the upper recess portion, such that the fixing element is inserted in a first direction into the sidewalls and the fixing element is secured in a second direction, the second direction being transverse to the first direction. ### Claim 2 (depends on 1) The mounting element according to claim 1, wherein the conically tapering outer surface is a circumferentially disposed outer surface. ### Claim 3 (depends on 1) The mounting element according to claim 1, wherein a second axis defined by the conically tapering outer surface is aligned with or parallel to the axis of elongation. ### Claim 4 (depends on 1) A mounting element according to claim 1, wherein the endwalls are disposed on a side of the sidewalls opposite to an opening of the upper recess portion; and/or wherein the endwalls make an angle with each other. ### Claim 5 (depends on 1) The mounting element according to claim 1, wherein the axis of elongation is aligned with or parallel to a plane containing the prosthesis. ### Claim 6 (depends on 5) The mounting element according to claim 5, wherein an angle of taper of the tapering portion, the conically tapering outer surface and/or angle of inclination of the inclined surface relative to the axis of elongation is in the range 8-11 degrees. ### Claim 7 (depends on 1) The mounting element according to claim 1, wherein the registration portion further comprises at least one planar registration surface extending parallel to the axis of elongation. ### Claim 8 (depends on 7) The mounting element according to claim 7, wherein the registration portion further comprises at least one planar inclined surface, continuous with the conically tapering outer surface, the at least one planar inclined surface being inclined relative to the axis of elongation and intersecting a respective planar registration surface. ### Claim 9 (depends on 8) The mounting element according to claim 8, wherein said axially extending elongate lower recess portion corresponds to a lower part of a “T”. ### Claim 10 (depends on 9) The mounting element according to claim 9, wherein said lower recess portion extends along the length of the registration portion. ### Claim 11 (depends on 8) The mounting element according to claim 8, wherein said transversely extending upper recess portion corresponds to an upper part of a “T”, the upper recess portion being configured to receive, in use, an upper portion of a fixing element, for fixedly attaching the prosthesis to the jig. ### Claim 12 (depends on 11) The mounting element according to claim 11, wherein said upper recess portion defines an abutment surface, the abutment surface lying in a plane transverse to the axis of elongation and configured to be engaged, in use, by a surface of the upper portion of the fixing element. ### Claim 13 (depends on 1) Method of fabricating a dental prosthesis, comprising: providing a substrate; forming an unworked dental prosthesis on the substrate using 3D printing, the prosthesis including at least one bridge and a mounting element according to claim 1; removing the unworked dental prosthesis from the substrate; positioning the unworked dental prosthesis in a jig having a receiving portion shaped correspondingly to the registration portion, thereby enabling form-fitting mounting and alignment of the prosthesis in a precise position and/or orientation on the jig; fixing the unworked dental prosthesis in position using a fixing element engaging the mounting element and the jig; machining the at least one bridge to produce a final dental prosthesis; and removing the final dental prosthesis from the jig. ### Claim 14 (depends on 1) A dental prosthesis formed using 3D printing, the prosthesis including at least one bridge and a mounting element according to claim 1. ### Claim 15 (depends on 4) A dental prosthesis according to claim 4, wherein said mounting element is formed integrally with the prosthesis using 3D printing.