Computer implementation method, electronic device and storage medium for generating three-dimensional geometric data of orthodontic retainer wires

CN122312918APending Publication Date: 2026-06-30SHANGHAI YINQI DENTAL TECH CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: SHANGHAI YINQI DENTAL TECH CO LTD
Filing Date: 2026-04-22
Publication Date: 2026-06-30

AI Technical Summary

Technical Problem

Current orthodontic retainer wire designs rely on technician experience, lack automation, and engineering constraints are difficult to implement throughout the entire design process. Interactive modifications can easily disrupt manufacturing constraints, resulting in poor design consistency and increased manufacturing difficulty.

Method used

Using a computer-based approach, a 3D model of the patient's dentition is obtained. A deep learning neural network is used to segment the tooth and gingival regions. Combined with key point configuration templates and numerical optimization techniques, a 3D curve that meets engineering constraints is generated. Interactive adjustment and constraint verification are provided, and a structured design file is exported.

Benefits of technology

It enables parameterized and standardized design of retainer wires, ensuring design consistency and manufacturability, reducing the risk of interactive modifications breaking engineering constraints, and providing a unified geometric data interface for downstream processing.

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Abstract

This invention discloses a computer-based method, electronic device, and storage medium for generating three-dimensional geometric data for orthodontic retainer wires. The method acquires a three-dimensional digital model of the patient's dentition, receives the target orthodontic retainer type and target tooth position, identifies the tooth surface region and gingival surface region, and extracts the three-dimensional gingival boundary line of the target tooth position; generates patient-specific three-dimensional keypoint coordinates based on a keypoint configuration template, and solves for a three-dimensional curve representing the wire center path under minimum distance constraints and minimum local bending radius constraints; performs constraint verification on interactive adjustments, restricts or corrects illegal updates, and exports a structured wire design file containing the three-dimensional curve geometric data. This invention can improve the consistency, manufacturability, and safety of retainer wire design.

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