Systems and methods for mapping gingival surface

The method and system for mapping gingival surfaces using a spatially trackable tool and reference objects address the challenge of obstructions in existing technologies, providing accurate digital maps for improved dental prostheses design and fitting.

WO2024259534A1PCT designated stage expired Publication Date: 2024-12-261000932139 ONTARIO INC
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Patent Information

Application Number
PCT/CA2024/050836
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-06-22
Filing Date
2024-06-21
Publication Date
2024-12-26

AI Technical Summary

Technical Problem

Current dental prosthetics design and manufacturing face challenges in accurately mapping gingival surfaces due to obstructions like blood, saliva, and loose tissue flaps, leading to inaccurate digital maps and ill-fitting prostheses.

Method used

A method and system using a spatially trackable mapping tool and reference objects to capture gingival surface coordinates, even in the presence of obstructions, and compute a geometrical surface descriptor for guiding the design of dental prostheses, ensuring accurate representation of the gingival surface.

Benefits of technology

This approach provides a precise digital map of the gingival surface, enabling the design of well-fitting dental prostheses by accurately capturing surface details and eliminating the need for separate imaging systems, thus improving the accuracy and complexity of the mapping process.

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Abstract

A method of mapping a gingival surface of a patient's jaw using at least one spatially trackable reference object in a fixed spatial relation to that jaw and a spatially trackable mapping tool. A plurality of gingival surface coordinate sets are captured in a coordinate frame of the jaw. Each of the gingival surface coordinate sets is captured when the mapping tool is in contact with a corresponding gingival surface location on the gingival surface. A geometrical gingival surface descriptor is computed from the plurality of gingival surface coordinate sets.
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Citation Information

Patent Citations

  • Jaw surface based registration

    WO2019014759A1