3D Tooth Row Motion Visualization for Premature Contact Detection
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Solution Overview
Problem
Existing methods for identifying premature contact positions between upper and lower rows of teeth do not consider jaw motion, leading to inaccurate treatment planning in dental treatments.
Innovation Solution
A data generating apparatus that acquires three-dimensional tooth row data and jaw motion data to generate video data showing the positional relation between upper and lower rows of teeth during jaw motion, using color indicators to represent the distance between points on the teeth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional methods are used to indicate premature contact position on three-dimensional data, then the contact position can be marked, but the jaw motion is not considered leading to inaccurate treatment planning
Solution Approach 1:
The patent applies the Dynamics principle by transitioning from static three-dimensional data to dynamic video data that captures jaw motion throughout the closing movement. The system generates a series of images showing the positional relationship between upper and lower teeth at multiple stages of jaw closure, enabling accurate identification of premature contact positions that occur during actual jaw movement rather than just at the final occlusal position.
2Ease of manufacture
If static three-dimensional data is used, then the data processing is simple, but the positional relation during jaw motion cannot be checked
Solution Approach 1:
The patent applies the Another dimension principle by adding the time dimension to the three-dimensional tooth data. Instead of processing only static spatial information, the system creates time-series video data that shows how the positional relationship between teeth changes during jaw closure. This temporal dimension enables reliable identification of when and where premature contact occurs during the dynamic jaw motion process.
Data Source
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AI summary
A data generating apparatus (1) includes: an input interface (14) configured to receive upper-jaw tooth row data showing a three-dimensional shape of a row of teeth in an upper jaw, lower-jaw tooth row data showing a three-dimensional shape of a row of teeth in a lower jaw, and jaw motion data showing a jaw motion; and an computing device (11) configured to generate, based on the upper-jaw tooth row data, the lower-jaw tooth row data, and the jaw motion data, video data of at least one of the upper-jaw tooth row data and the lower-jaw tooth row data to which an indicator is added, the indicator indicating a positional relation between the row of teeth in the upper jaw and the row of teeth in the lower jaw, the positional relation changing in accordance with the jaw motion.