3D Dental Model Completeness Assessment
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Solution Overview
Problem
Current 3D scanning methods for dental treatments rely on user-dependent visual determination of data reliability, which is ambiguous and time-consuming, and does not guarantee the completeness of the 3D model.
Innovation Solution
A data processing method that automatically determines the reliability of 3D models by analyzing specific regions, such as tooth areas, using predefined criteria, and provides feedback on the completeness without requiring user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If user's personal determination is used to assess 3D model completeness, then the process is simple and quick, but the reliability and objectivity of the assessment deteriorates due to ambiguity and subjectivity
Solution Approach 1:
The system performs self-assessment of the 3D model completeness by automatically comparing the scanned tooth regions with reference tooth models. The system independently determines whether each tooth region is completely scanned without requiring user judgment, thereby achieving both high reliability through objective algorithms and high productivity through automated processing.
2Reliability
If reliability map method with color coding is used to display 3D model reliability, then visual indication of reliability is improved, but the ease of operation deteriorates due to mode switching requirements and continuous display needs
Solution Approach 1:
The patent extracts only the essential reliability information (complete/incomplete tooth regions) and presents it directly through numerical indicators and localized markings on the 3D model. This eliminates the need for complex color-coded reliability maps and mode switching, providing clear reliability indication while maintaining simple operation.
3Device complexity
If visual determination method is used to check 3D model completeness, then the device complexity is low, but the measurement precision deteriorates because it cannot guarantee completeness above a certain level
Solution Approach 1:
The patent replaces the mechanical/visual determination process with an automated computational system that compares scanned tooth regions with reference models using image processing algorithms. This substitution maintains low device complexity while dramatically improving measurement precision by objectively determining whether each tooth region meets completeness thresholds.
4Adaptability or versatility
If mode switching button is added to alternatively display reliability and actual color modes, then the versatility of the display system is improved, but the ease of operation deteriorates due to unnecessary operations required
Solution Approach 1:
The system integrates multiple display functions into a single unified interface that simultaneously shows the 3D model with completeness indicators. The same display interface provides both the visual 3D model and the completeness assessment information without requiring mode switching, achieving versatility while maintaining operational simplicity.
Data Source
AI summary
A data processing method according to the present disclosure includes: distinguishing, in a 3D model, an analysis region including at least one tooth region; and determining a degree of completeness of the 3D model based on the analysis region.