# US 10,245,124 B2 · Simplified protocol for fixed implant restorations using intra-oral scanning and dental CAD/CAM > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,124 B2 - Document ID: US10245124B2 - Status: Granted - Kind: B2 - Application number: 15/630,141 - Filed: 2017-06-22 - Published: 2017-12-07 - Granted: 2019-04-02 - Earliest claimed: 2013-03-08 - Assignees: James R. Glidewell Dental Ceramics, Inc. - Applicants: James R. Glidewell Dental Ceramics, Inc. - Inventors: Grant Stewart Bullis; Shawn Andrews Ramirez; Zachary Richard Dalmau - Web page: https://patentgrep.com/patent/US10245124B2 ## CPC - A61C 13/01: Palates or other bases or supports for the artificial teeth; Making same - A61C 8/0048: {Connecting the upper structure to the implant, e.g. bridging bars (A61C8/0028 takes precedence)} - A61C 13/0004: {Computer-assisted sizing or machining of dental prostheses} - A61C 13/0013: {using stereolithographic techniques} - G16H 20/40: relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture - 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) - G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA ## Abstract A method of creating implant-supported dentures without physical impressions is provided. Digital impressions may be obtained from scanning the oral cavity, its structures, landmarks, and implant positions. These scans together provide a highly accurate, digital model from which a digital denture design may be created. Digital denture designs may be reproduced as denture shapes by automated manufacturing processes, and an implant-supported denture may be manufactured therefrom. Methods form making a try-in denture and a final implant-supported denture are provided. ## Claims ### Claim 1 A method of making a digital patient model for use in making an implant-supported denture device for a patient comprising dental implants, comprising the steps of: a) scanning an edentulous jaw of a patient having at least one dental implant comprising a dental abutment to acquire a first image of the edentulous jaw and a provisional denture device that is attached the edentulous jaw, wherein the edentulous jaw is a mandibular arch; b) removing the provisional denture device from the edentulous jaw and attaching a digital impression coping to the dental abutment, and scanning of the patient's edentulous jaw to acquire a second image of the edentulous jaw and the digital impression coping; c) scanning an opposing jaw that opposes the edentulous jaw, wherein the opposing jaw comprises an edentulous maxillary arch at least one oral landmark selected from a maxillary tuberosity, a hamular notch and an incisive papilla, to acquire a third image; d) saving the first, second, and third images into an electronic storage medium; and e) registering the images using at least one oral landmark selected from a retromolar pad and a mandibular torus common to the first and second images, and creating a digital patient model that comprises a digital model of the edentulous jaw. ### Claim 2 (depends on 1) The method of claim 1, wherein the step of scanning comprises intra-oral scanning with an intra-oral scanning device. ### Claim 3 (depends on 1) The method of claim 1, wherein the step of scanning the edentulous jaw comprises scanning the patient's full mandibular arch. ### Claim 4 (depends on 1) The method of claim 1, comprising selecting more than one common oral landmark, and at least one of the oral landmarks comprises dentition or an impression coping. ### Claim 5 (depends on 1) The method of claim 1, wherein the opposing jaw further comprises a removable denture or an implant supported denture. ### Claim 6 (depends on 1) The method of claim 1, comprising attaching an impression coping to a dental abutment on the opposing jaw, scanning the opposing jaw to form a forth image, and registering the forth image with the third image to create a patient digital model of the opposing jaw. ### Claim 7 (depends on 1) The method of claim 1, comprising forming a digital denture design comprising digital denture teeth and digital gingiva, based on the digital patient model. ### Claim 8 (depends on 7) The method of claim 7, further comprising forming a digital substructure design based on the digital patient model, and designing a cavity in the digital denture design that corresponds to the digital substructure design. ### Claim 9 (depends on 7) The method of claim 7, further comprising manufacturing an implant-supported denture device from the digital denture design. ### Claim 10 A method of making a digital patient model for use in making an implant-supported denture device for a patient comprising dental implants, comprising the steps of: a) scanning an edentulous jaw of a patient, having at least one dental implant comprising a dental abutment, to acquire a first image of the edentulous jaw and a provisional denture device that is attached the edentulous jaw, wherein the edentulous jaw is a maxillary arch; b) removing the provisional denture device from the edentulous jaw and attaching a digital impression coping to the dental abutment, and scanning the edentulous jaw to acquire a second image of the edentulous jaw and the digital impression coping; c) scanning an opposing jaw that opposes the edentulous jaw, wherein the opposing jaw comprises an edentulous mandibular arch having at least one oral landmark selected from a retromolar pad and a mandibular torus, to acquire a third image of the opposing jaw and dentition; d) saving the first, second, and third images into an electronic storage medium; and e) registering the images using at least one oral landmark selected from a maxillary tuberosity, a hamular notch and an incisive papilla that is in common to the first and second images, and creating a digital patient model that comprises a digital model of the edentulous jaw. ### Claim 11 (depends on 10) The method of claim 10, further comprising forming a digital denture design that comprises digital denture teeth and a gingiva region from the digital patient model. ### Claim 12 (depends on 11) The method of claim 11, further comprising manufacturing an implant-supported denture device from the digital denture design. ### Claim 13 (depends on 11) The method of claim 11, wherein the opposing jaw further comprises a removable denture or an implant supported denture. ### Claim 14 A method for making a digital denture design for an implant-supported denture device comprising: a) acquiring a dataset of a first image of a patient's oral anatomy comprising an edentulous jaw having an implant implanted in the jaw, an abutment, and a digital impression coping attached to the abutment, wherein the digital impression coping has at least one surface feature indicating the position and orientation of the implant, and at least one oral landmark; b) acquiring a dataset of a second image of the patient's oral anatomy comprising the edentulous jaw, a provisional denture device attached to the edentulous jaw, and at least one oral landmark; c) acquiring a dataset of a third image of the patient's oral anatomy comprising an opposing jaw that opposes the edentulous jaw and that comprises dentition; d) identifying at least one common oral landmark in the datasets of the first and second images, that is common to the first and second images, and creating a digital patient model, wherein, if the edentulous jaw comprises a mandibular arch, the common oral landmark is selected from a retromolar pad and a mandibular torus, and wherein, if the edentulous jaw comprises a maxillary arch, the common oral landmark is selected from a maxillary tuberosity, a hamular notch and an incisive papilla; e) registering the first image, the second, and the third image and forming a digital model of the patient's oral anatomy; and f) generating a digital denture design based on the digital model of the patient's oral anatomy, wherein the digital denture design comprises digital denture teeth and digital gingiva. ### Claim 15 (depends on 14) The method of claim 14, wherein the dentition of the opposing jaw is selected from natural teeth, a removable denture, and an implant supported denture. ### Claim 16 (depends on 14) The method of claim 14, wherein the first and second images are registered using at least one common anterior oral landmark and a common posterior oral landmark. ### Claim 17 (depends on 14) The method of claim 14, further comprising acquiring a scan of the edentulous jaw and the opposing jaw in occlusion as a forth image, and registering the forth image with at least one of the first, second and third images. ### Claim 18 (depends on 14) The method of claim 14, further comprising acquiring an image of the provisional denture device that comprises an upper portion and a lower portion oriented in occlusion as a forth image, and registering the forth image with at least one of the first, second and third images. ### Claim 19 (depends on 14) The method of claim 14, further comprising generating a digital substructure design based on the digital denture design, and subtracting a digital data set from the digital denture design that corresponds to the digital substructure design.