Occlusal State Identification via Dynamic Simulation
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Solution Overview
Problem
It is burdensome for users to arrange maxillary and mandibular images to match a certain reference surface for occlusal surface alignment in dental CAD systems, as the images obtained from dental 3D scanners have direction and tilt issues, making it difficult to adjust the positional relationship between them accurately.
Innovation Solution
An occlusal state identifying method using a processor to obtain maxillary and mandibular shape data, arrange the images such that corresponding teeth oppose each other, and execute a dynamic simulation to identify the positional relationship between the images, simulating the natural fall of the maxilla to determine the occlusal state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If maxillary and mandibular images are manually arranged to match a reference surface for occlusal alignment, then alignment accuracy is improved, but user burden and operation complexity increase
Solution Approach 1:
The system enables the images to self-align through automatic occlusal state identification. The processor automatically determines the positional relationship between maxillary and mandibular images by analyzing tooth contact patterns, eliminating the need for manual arrangement by the user while maintaining high alignment accuracy
Solution Approach 2:
The manual mechanical arrangement process is replaced with an automated computational system. The processor uses image processing and occlusal analysis algorithms to automatically determine the correct positional relationship, substituting human manual operation with automated mechanical/computational processes
2Manufacturing precision
If fitting scan data is obtained and used for generating occlusal images, then alignment accuracy is improved, but the scanning process and data management complexity increase
Solution Approach 1:
The invention extracts and utilizes only the essential information needed for occlusal alignment from the scan data. By focusing on tooth contact pattern recognition rather than requiring complete fitting scan data, the system simplifies data management while maintaining alignment accuracy
Solution Approach 2:
The system creates a virtual model of the occlusal relationship by processing and analyzing scan data through computational algorithms. This virtual copying and simulation of occlusal contact patterns allows accurate alignment determination without requiring physical fitting scans or complex data handling
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method allows for the accurate identification of the occlusal state between maxillary and mandibular images, simplifying the process of generating an occlusal image without requiring fitting scan data, thereby reducing user burden and improving alignment accuracy.
Implementation Method 1
executing a dynamic simulation; and identifying a positional relationship between the maxillary image and the mandibular image after the moving process as a positional relationship corresponding to an occlusal state
Data Source
Figure 1A~1B
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AI summary
An occlusal state identifying method executed by a processor included in an occlusal state identifying apparatus, the occlusal state identifying method includes obtaining maxillary shape data and mandibular shape data; arranging a maxillary image including a plurality of maxillary teeth corresponding to the obtained maxillary shape data and a mandibular image including a plurality of mandibular teeth corresponding to the obtained mandibular shape data such that corresponding teeth oppose each other; executing a moving process of moving at least one of the arranged maxillary image and mandibular image by executing a dynamic simulation; and identifying a positional relationship between the maxillary image and the mandibular image after the moving process as a positional relationship corresponding to an occlusal state of the maxillary teeth included in the maxillary image and the mandibular teeth included in the mandibular image.