3D Jaw Model Generation Using Fictitious Gum Substitution
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Solution Overview
Problem
Existing methods for generating 3D data models of patient jaws are complex, particularly when deforming gums to represent tooth movement during orthodontic treatment, making the process cumbersome and difficult to execute effectively.
Innovation Solution
A method is introduced where a fictitious gum model is created independently of the actual gum's spatial-physical shape, based on the predetermined tooth position, simplifying the process by eliminating the need for complex deformation calculations and focusing on realistic tooth representation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the 3D partial data model of actual gums is deformed to represent tooth movement, then the treatment path can be visualized, but the process becomes very complex
Solution Approach 1:
The patent extracts the gum modeling task from the complex deformation process and replaces it with independent fictitious gum generation. Instead of deforming actual gums through complex calculations, the method creates simplified fictitious gums that are generated independently for each tooth position, eliminating the need for complex deformation while maintaining visualization capability
Solution Approach 2:
The patent creates fictitious gum copies that represent the essential visual characteristics needed for treatment visualization. These fictitious gums are simplified representations that capture the necessary visual information without requiring complex deformation of the actual gum models, thus reducing computational complexity while maintaining visualization effectiveness
2Ease of manufacture
If fictitious gums are modeled independently of actual gums, then the process is simpler, but the natural appearance may be compromised
Solution Approach 1:
The patent applies local quality by generating fictitious gums with tooth-specific characteristics. Each fictitious gum is modeled independently based on its associated tooth's predetermined position, allowing the gum appearance to be locally optimized for naturalness at each tooth location while maintaining overall process simplicity through the independent generation approach
Data Source
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AI summary
The invention relates to a computer-implemented method for generating a 3D data model (10) of a patient's jaw (12, 14), wherein the 3D data model (10) of the jaw (12, 14) comprises at least one 3D partial data model (16) of the crowns (K) of the teeth (Z) of the jaw (K) located in a predetermined position and a 3D partial data model of the gingiva. According to the invention, during the execution of the method, there is a point in time at which the 3D data model of the jaw (12, 14) is free of any 3D partial data model (18) representing the actual gingiva (fist) of the patient. Subsequently, a 3D partial data model of a fictitious gum is created based on at least the 3D partial data model (16) of the tooth crowns (K) and added to the 3D data model of the jaw (12, 14).