Patents by Inventor Ammar ALSHEGHRI

Ammar ALSHEGHRI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230277283
    Abstract: A method and a system for generating a three-dimensional crown surface for replacing a missing tooth are disclosed. The method comprising: detecting the missing tooth from a digital three-dimensional representation of a mouth using a first artificial intelligence model; and using a second artificial intelligence model, generating a three-dimensional crown surface for replacing the missing tooth taking into account one or more of a dental preparation, margin line, occlusion, the gap between the preparation and adjacent and opposing teeth.
    Type: Application
    Filed: July 23, 2021
    Publication date: September 7, 2023
    Inventors: Nicolas Piché, Nathaniel Lasry, Ammar Alsheghri, Farida Cheriet, Farnoosh Ghadiri, François Guibault, Golriz Hosseinimanesh, Julia Keren, Olivier Lessard, Ying Zhang
  • Patent number: 10959818
    Abstract: A method is provided for designing and fabricating a removable partial denture (RPD) framework including clasp retainers configured for removable engagement with abutment teeth of a patient. The method includes obtaining an initial digital model of the RPD framework based on patient image data. For each clasp retainer, a set of relevant geometric parameters is identified, each relevant geometric parameter being provided with a nominal value, and a target value of dislodging force is provided. The method further includes performing a force analysis on the initial digital model to determine corrected values for the relevant geometric parameters of each clasp retainer such that when the corrected values are assigned to the relevant geometric parameters, the dislodging force matches its target value. The method also includes obtaining a corrected digital model based on the corrected values, and fabricating the RPD framework based on the corrected digital model.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: March 30, 2021
    Assignee: 3DRPD, INC.
    Inventors: Eric Caron, Faleh Ahmad Tamimi Marino, Omar Saleh Alageel, Ammar Alsheghri, Jun Song
  • Publication number: 20180042708
    Abstract: A method is provided for designing and fabricating a removable partial denture (RPD) framework including clasp retainers configured for removable engagement with abutment teeth of a patient. The method includes obtaining an initial digital model of the RPD framework based on patient image data. For each clasp retainer, a set of relevant geometric parameters is identified, each relevant geometric parameter being provided with a nominal value, and a target value of dislodging force is provided. The method further includes performing a force analysis on the initial digital model to determine corrected values for the relevant geometric parameters of each clasp retainer such that when the corrected values are assigned to the relevant geometric parameters, the dislodging force matches its target value. The method also includes obtaining a corrected digital model based on the corrected values, and fabricating the RPD framework based on the corrected digital model.
    Type: Application
    Filed: March 8, 2016
    Publication date: February 15, 2018
    Inventors: Eric CARON, Faleh Ahmad TAMIMI MARINO, Omar Saleh ALAGEEL, Ammar ALSHEGHRI, Jun SONG