# US 11,298,216 B2 · System and method for manufacturing layered dentures > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,216 B2 - Document ID: US11298216B2 - Status: Granted - Kind: B2 - Application number: 16/278,118 - Filed: 2019-02-17 - Published: 2019-06-13 - Granted: 2022-04-12 - Earliest claimed: 2014-03-03 - Assignees: Global Dental Science, LLC - Applicants: Global Dental Science, LLC - Inventors: Johannes Petrus Michael Grobbee - Web page: https://patentgrep.com/patent/US11298216B2 ## CPC - A61C 13/09: {Composite teeth, e.g. front and back section (A61C13/0835, A61C13/1023 take precedence)}; Multilayer teeth - A61C 13/1003: {by embedding in base material} - 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) ## Abstract A method of manufacturing a layered denture in which the enamel layer or the tooth layer is manufactured first and the denture base is manufactured last. The resulting denture may exhibit an enamel layer or a tooth layer with enhanced strength and/or resiliency. The resulting denture may have one or more of an integrated layer, balanced occlusion, and a root approximating structure. ## Claims ### Claim 1 A blank capable of being machined into artificial dentition structures for a denture, the blank comprising: an enamel material layer having a first cavity disposed in a first face of the blank and comprising a first tooth boundary and an aft cavity; a first denture material comprising a dentin material disposed in the first cavity of the blank and covering the first tooth boundary and occupying the aft cavity. ### Claim 2 (depends on 1) The blank according to claim 1, further comprising a second cavity disposed in at least one of the first denture material and the enamel material layer and comprising first base boundary outlining the shape of a denture base. ### Claim 3 (depends on 2) The blank according to claim 2, further comprising a second denture material comprising a denture base material disposed in the second cavity and covering the first base boundary. ### Claim 4 (depends on 3) The blank according to claim 3, wherein the first tooth boundary is offset to achieve balanced occlusion. ### Claim 5 (depends on 3) The blank according to claim 3, further comprising a support layer material comprising a different material than the second denture material. ### Claim 6 (depends on 3) The blank according to claim 3, further comprising a support layer material embedded in the second denture material. ### Claim 7 (depends on 3) The blank according to claim 3, further comprising a support layer material embedded in the second denture material and comprising a different material than the second denture material. ### Claim 8 (depends on 1) The blank according to claim 1, wherein the blank comprises enamel material cured under heat and pressure. ### Claim 9 (depends on 1) The blank according to claim 1, wherein the first tooth boundary comprises an interface between the blank and the first denture material. ### Claim 10 (depends on 7) The blank according to claim 7, wherein the second denture material further comprises a base pocket having at least one of an edentulous ridge interface surface and an implant interface surface. ### Claim 11 (depends on 10) The blank according to claim 10, wherein the blank is shaped in accordance with a three-dimensional file of a patient's anatomy. ### Claim 12 (depends on 10) The blank according to claim 10, wherein the blank is shaped in accordance with a three-dimensional file of a patient's anatomy comprising: a defined motion envelope of a user's mandible; an electronically modeled enamel layer wherein the electronically modeled enamel layer is modeled in response to the defined motion envelope; an electronically modeled dentin layer, wherein the electronically modeled dentin layer is offset in response to the defined motion envelope to provide sufficient spacing for the electronically modeled enamel layer to achieve balanced occlusion. ### Claim 13 (depends on 12) The blank according to claim 12, wherein the defined motion envelope comprises: a protrusion constraint; and a laterotrusion constraint. ### Claim 14 (depends on 13) The blank according to claim 13, wherein the protrusion constraint comprises at least one of: incisal guidance and condylar shape. ### Claim 15 (depends on 13) The blank according to claim 13, wherein the laterotrusion constraint comprises at least one of: canine guidance and condylar shape. ### Claim 16 A blank configured to be capable of making a denture comprising: an enamel material layer having a first cavity disposed in a first face of enamel material layer and further comprising a first tooth boundary and an aft cavity; a second cavity disposed in a second face of the enamel material layer opposite the first face and comprising first base boundary outlining the shape of a denture base; and a first denture material comprising a dentin material disposed in the first cavity of the blank and covering the first tooth boundary and occupying the aft cavity; and a second denture material comprising a denture base material disposed in the second cavity of the second face of the blank and covering the first base boundary. ### Claim 17 (depends on 16) The blank according to claim 16, wherein the first tooth boundary is offset to achieve balanced occlusion. ### Claim 18 (depends on 16) The blank according to claim 16, wherein the enamel material layer is cured under heat and pressure. ### Claim 19 (depends on 16) The blank according to claim 16, wherein the first tooth boundary comprises an interface between the enamel material layer and the first denture material. ### Claim 20 (depends on 16) The blank according to claim 16, wherein the blank is shaped in accordance with a three-dimensional file of a patient's anatomy.