Intraoral Eggshell Boundary Adjustment via Precomputed Templates
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Solution Overview
Problem
In dental CAD/CAM treatments, the boundary of temporary prosthetic eggshells generated from intraoral images does not accurately match the actual margin line, requiring manual adjustment, which is time-consuming and prone to shape distortion.
Innovation Solution
A data processing apparatus and method that allows users to adjust the boundary of the eggshell through a user interface, using predefined basic, largest, and smallest eggshell sizes to transform the boundary without distorting the shape, by identifying variable and fixed regions and interpolating between these sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual adjustment of the eggshell boundary is performed to match the actual margin line, then the boundary accuracy is improved, but the operation time increases and shape distortion occurs
Solution Approach 1:
The system pre-calculates and provides multiple boundary size options (basic, largest, smallest eggshells) before the user needs to adjust the boundary. This preliminary preparation of standardized boundary configurations eliminates the need for time-consuming manual adjustment while maintaining shape accuracy, as the correct boundary size is already ready for selection.
Solution Approach 2:
The system changes the boundary size parameter by providing discrete size options (basic, largest, smallest) rather than requiring continuous manual adjustment. This parameter discretization allows users to select from pre-computed boundary configurations, reducing operation time while maintaining precision through the use of standardized size categories that are optimized for different clinical scenarios.
2Measurement precision
If manual adjustment of the eggshell boundary is performed to match the actual margin line, then the boundary accuracy is improved, but shape distortion occurs
Solution Approach 1:
The system pre-computes boundary configurations for different sizes (basic, largest, smallest) while maintaining geometric accuracy and proper shape proportions. By providing these pre-optimized configurations, the system eliminates shape distortion that would occur during manual adjustment, as the boundary shapes are already optimized in the preliminary calculation phase.
Solution Approach 2:
The system creates standardized boundary configurations (basic eggshell, largest eggshell, smallest eggshell) that serve as template copies. These templates maintain correct geometric proportions and shapes, allowing users to select the appropriate size without introducing distortion, since each template is a precise copy optimized for its specific size category.
3Measurement precision
If the eggshell boundary is adjusted to match the actual margin line, then the treatment accuracy is improved, but user fatigue increases
Solution Approach 1:
The system performs the time-consuming boundary calculation and optimization in advance, providing ready-to-select boundary configurations. This preliminary action eliminates the need for users to perform repetitive manual adjustment operations, significantly reducing user fatigue while maintaining treatment accuracy through the use of pre-computed optimal boundaries.
Solution Approach 2:
The system provides self-service functionality by automatically generating and providing multiple boundary size options (basic, largest, smallest) that users can simply select without manual adjustment. This automation of the boundary generation process reduces user effort and fatigue while maintaining accuracy, as the system serves itself by pre-calculating the optimal boundaries.
Data Source
AI summary
Provided are a method and apparatus for processing an intraoral image. The data processing apparatus includes a memory including one or more instructions, and a processor configured to execute the one or more instructions stored in the memory, wherein the processor, by executing the one or more instructions, displays an eggshell generated based on surface data of a tooth selected from the intraoral image, provides a user interface that allows to adjust a boundary of the eggshell, and displays an eggshell transformed by adjusting the boundary of the eggshell according to a user input through the user interface.