Patents by Inventor Zhaozhao CHEN

Zhaozhao CHEN 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: 20230225839
    Abstract: The present invention relates to methods and systems for generating a 3-D dental impression with a corresponding hinge axis position and, in certain embodiments, a condylar guide inclination. In some embodiments, an intraoral scanner and a computer processing system are employed to: i) generate upper and lower jaw models, and first and second occlusal 3-D models with different mouth openings (MOs) or functional positions (FPs), ii) align the models to generate a composite 3-D model, iii) calculate a hinge axis position from the composite 3-D model based on the difference in said MOs or FPs, and iv) mount the 3-D dental impression on a virtual articulator (VA) by aligning the hinge axis position to the hinge axis position of the VA.
    Type: Application
    Filed: April 15, 2021
    Publication date: July 20, 2023
    Inventors: Junying Li, Hom-Lay Wang, Zhaozhao Chen
  • Patent number: 11672634
    Abstract: A measuring system for analysis of space for dental implant restoration comprises a first measuring assembly for measuring a mouth opening degree and a first gap of plural missing teeth, a second measuring assembly for measuring a second gap of a single missing tooth and an occlusal distance, and a third measuring assembly for measuring a transgingival depth, wherein each of the first measuring assembly, the second measuring assembly and the third measuring assembly comprises a connecting rod and a measuring head disposed at an upper end of the connecting rod. A measuring method for analysis of space for dental implant restoration using the aforesaid measuring system for analyzing is further disclosed.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: June 13, 2023
    Assignee: SICHUAN UNIVERSITY
    Inventors: Haiyang Yu, Zhaozhao Chen, Xi Chen
  • Patent number: 11071614
    Abstract: A measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth comprises a connecting rod and a measuring head disposed at an upper end of the connecting rod, the measuring head comprises a first measuring ruler and a second measuring ruler perpendicular to the first measuring ruler, a lower end of the second measuring ruler and one end of the first measuring ruler are connected to the connecting rod. The occlusal distance checking can be performed simply and directly by using the first measuring ruler to directly compare whether it can pass through the occlusion gap in the region to be repaired, the gap of the single missing tooth analysis is performed easily and directly by using the second measuring ruler to directly compare whether it can pass the gap in the measuring region to be repaired.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: July 27, 2021
    Assignee: SICHUAN UNIVERSITY
    Inventors: Haiyang Yu, Zhaozhao Chen, Xi Chen
  • Publication number: 20210038356
    Abstract: A measuring apparatus for measuring an occlusal distance and/or a space of a missing tooth comprises a connecting rod and a measuring head disposed at an upper end of the connecting rod, the measuring head comprises a first measuring ruler and a second measuring ruler perpendicular to the first measuring ruler, a lower end of the second measuring ruler and one end of the first measuring ruler are connected to the connecting rod. The occlusal distance checking can be performed simply and directly by using the first measuring ruler to directly compare whether it can pass through the occlusion gap in the region to be repaired, the gap of the single missing tooth analysis is performed easily and directly by using the second measuring ruler to directly compare whether it can pass the gap in the measuring region to be repaired.
    Type: Application
    Filed: March 27, 2018
    Publication date: February 11, 2021
    Inventors: Haiyang YU, Zhaozhao CHEN, Xi CHEN
  • Publication number: 20210030520
    Abstract: A measuring system for analysis of space for dental implant restoration comprises a first measuring assembly for measuring a mouth opening degree and a first gap of plural missing teeth, a second measuring assembly for measuring a second gap of a single missing tooth and an occlusal distance, and a third measuring assembly for measuring a transgingival depth, wherein each of the first measuring assembly, the second measuring assembly and the third measuring assembly comprises a connecting rod and a measuring head disposed at an upper end of the connecting rod. A measuring method for analysis of space for dental implant restoration using the aforesaid measuring system for analyzing is further disclosed.
    Type: Application
    Filed: March 27, 2018
    Publication date: February 4, 2021
    Inventors: Haiyang YU, Zhaozhao CHEN, Xi CHEN