Tooth Model Mesh Blending for Customized Dental Shape Deformation
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Solution Overview
Problem
Existing three-dimensional modeling methods for tooth models are limited in their ability to efficiently deform shapes to accommodate individual user variations, particularly in digital dentistry, leading to inefficiencies in manufacturing prosthetic appliances and implants.
Innovation Solution
A method involving multiple shape deformation and mesh blending techniques is employed to generate and blend deformation shape models based on tooth scan data, allowing for user-controlled parameter inputs to achieve desired tooth model shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional parametric modeling method is used to create tooth models, then the modeling process is systematic and interactive, but it cannot efficiently accommodate individual user variations in tooth shapes
Solution Approach 1:
The patent uses 3D scan data to create accurate digital copies of individual patient teeth, then applies parametric deformation to these copies to generate customized tooth models for prosthetics, combining the accuracy of scanning with the efficiency of parametric modeling
Solution Approach 2:
The patent employs parametric modeling to systematically vary tooth geometry parameters (such as crown height, root length, curvature) based on individual scan data, enabling efficient generation of customized tooth models that adapt to each patient's unique anatomy
2Manufacturing precision
If three-dimensional scan is used to obtain detailed tooth geometry, then individual tooth variations are captured accurately, but the data processing and model deformation become complex
Solution Approach 1:
The patent segments the tooth model into distinct regions (crown, root, neck) and applies different deformation strategies to each segment, simplifying the overall modeling process while maintaining accuracy in capturing individual tooth variations
Solution Approach 2:
The patent introduces an intermediate parametric model that serves as a bridge between the raw 3D scan data and the final prosthetic design, allowing systematic manipulation and optimization of tooth geometry without directly processing complex scan data
3Ease of operation
If multiple deformation shape models are generated and blended, then user-controlled shape adjustment is achieved, but the computational processing time increases
Solution Approach 1:
The patent pre-generates multiple deformation shape models with different geometric variations before the user makes final selections, allowing rapid iteration and adjustment without real-time computational overhead during the design phase
Solution Approach 2:
The patent implements dynamic blending between multiple deformation models that allows users to interactively adjust parameters and see updated results, with the system efficiently recalculating only the necessary portions of the model rather than regenerating entire models
Data Source
AI summary
A method for deforming a shape of a tooth model includes generating a plurality of deformation shape models by deforming a tooth template model based on tooth scan data and generating a blended shape model by performing mesh blending on the deformation shape models.