Deformed Dental Arch Model for Precision Orthodontic Analysis
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Solution Overview
Problem
Current methods for evaluating dental overhangs are inefficient and lack precision, impacting orthodontic treatment planning and effectiveness.
Innovation Solution
A method using a computer to generate a digital model of the dental arch, cutting it into tooth models, defining a support curve, deforming it to create a deformed model for enhanced analysis and measurement, and optionally using neural networks for hyperrealistic coloring and orthodontic appliance design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional methods are used to evaluate dental overhang, then the evaluation can be performed, but the speed and precision of analysis are insufficient
Solution Approach 1:
The patent creates a digital 3D model (copy) of the patient's dental arch that can be manipulated and measured without affecting the actual teeth. This digital copy allows for precise measurements and transformations that would be difficult or impossible to perform on physical dental models, thereby improving both measurement precision and analysis speed.
Solution Approach 2:
The patent transforms the dental arch evaluation from traditional 2D photographs or physical models into a 3D digital space. By working in three dimensions, the system enables more accurate spatial measurements and provides multiple viewing angles simultaneously, improving precision while reducing the time needed for comprehensive analysis.
2Measurement precision
If multiple teeth are visualized simultaneously in the initial model, then comprehensive analysis is possible, but the complexity of the model makes detailed measurement difficult
Solution Approach 1:
The patent segments the dental arch model into individual tooth models, each with its own reference curve. This segmentation allows the system to maintain the comprehensive 3D view of multiple teeth while enabling focused, precise measurements on individual teeth by isolating them through their respective reference curves, thereby reducing the effective complexity during measurement operations.
Solution Approach 2:
The patent introduces reference curves as intermediary elements between the complex dental arch model and the measurement process. These curves serve as simplified mediators that capture the essential geometry of each tooth, allowing precise measurements to be taken along these curves without dealing with the full complexity of the surrounding dental structures.
3Ease of operation
If the dental arch model is deformed to create a deformed model, then visualization and measurement are improved, but the model deviates from the original dental structure
Solution Approach 1:
The patent performs preliminary actions by creating the digital 3D model and segmenting it into individual tooth models with reference curves before any deformation or measurement takes place. This preliminary structuring ensures that the original dental geometry is captured and preserved in the digital model, allowing subsequent deformations to be applied systematically while maintaining reference to the original structure for accuracy.
Solution Approach 2:
The patent implements feedback mechanisms by maintaining the ability to compare the deformed model with the original dental arch model. The system allows operators to verify measurements and transformations against the original structure, ensuring that while the model can be deformed for easier measurement, the reliability and accuracy of the representation are continuously validated against the original dental anatomy.
Data Source
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AI summary
A method for evaluating a patient's dental situation, comprising: 1) generating an initial model of at least one dental arch of the patient; 2) cutting the initial model to define a tooth model to obtain a cut-out model; 3) determining an initial support curve for the tooth models in the cut-out model; 4) virtually fixing each tooth model onto the initial support curve; 5) modifying the cut-out model by deforming the initial support curve along a deformed support curve, so as to obtain a first deformed model, in which the tooth models are aligned along the deformed support curve; 6) presenting the first deformed model.