Interproximal Reduction Tooth Modeling for Precise Stripping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current orthodontic treatments face challenges in determining the optimal regions and amounts for interproximal reduction (IPR) of teeth, leading to insufficient or excessive stripping, which can result in residual crowding and incorrect tooth spacing due to reactive rather than predictive methods for determining stripping regions.
Innovation Solution
A computerized system and method for IPR tooth modeling that uses algorithms to determine if stripping is needed, generates a three-dimensional IPR tooth model, constructs a stripping plane based on local coordinate systems and neighboring teeth, and visualizes the stripped geometry to facilitate accurate treatment planning and adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If reactive methods are used to determine stripping regions, then the process is simpler to implement, but the precision of stripping amount and region determination deteriorates
Solution Approach 1:
The system performs preliminary action by proactively determining the optimal stripping region and amount before the actual stripping process. It uses collision detection algorithms to predict where teeth will collide during orthodontic treatment and pre-calculates the exact amount of material to be removed, transforming a reactive process into a predictive one that ensures precise stripping from the outset
Solution Approach 2:
The system implements feedback by continuously monitoring tooth positions during treatment and comparing them against the planned stripping parameters. It provides real-time feedback to clinicians about whether the stripping amount was sufficient, allowing for adjustments to be made while maintaining high precision in the final outcome
2Area of stationary object
If stripping amount is increased to ensure sufficient space, then the spacing between teeth improves, but the risk of creating gaps between neighboring teeth increases
Solution Approach 1:
The system applies parameter changes by dynamically adjusting the stripping amount parameter based on the specific collision detection results for each tooth pair. Instead of using a fixed stripping amount, it calculates the exact minimum amount needed to resolve each specific collision, thereby ensuring sufficient spacing while avoiding excessive removal that would create harmful gaps
Solution Approach 2:
The system implements local quality by applying different stripping amounts to different regions of teeth based on their specific collision characteristics. Each tooth and its neighboring teeth are evaluated individually to determine the optimal local stripping parameters, ensuring that each area receives the precise amount of material removal needed without creating uniform excessive gaps
3Productivity
If stripping is performed without visual representation of stripped geometry, then the treatment process is faster, but the ability to verify sufficient spacing and collision resolution deteriorates
Solution Approach 1:
The system creates a digital copy or virtual model of the tooth geometry after stripping is applied. This virtual representation allows clinicians to verify spacing and collision resolution without requiring physical measurement or additional imaging procedures, maintaining fast treatment progress while providing precise verification through the digital twin of the stripped teeth
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
In accordance with various aspects of the present invention, system and method for modeling and application of interproximal reduction (IPR) of teeth to facilitate orthodontic treatment is provided. In accordance with an exemplary embodiment, a system and method for modeling and application of IPR are configured within a treatment methodology that initially determines whether stripping is needed for two neighboring teeth. If stripping is necessary, the exemplary method for modeling and application of IPR is conducted. In an exemplary embodiment, a stripping plane or other surface is constructed to determine the amount and region of stripping for two neighboring teeth, in other words, the volume to be removed between two neighboring teeth. After stripping of the tooth, the tooth geometry can be reconstructed to enable application of the IPR tooth model, such as enabling the clinician to utilize the IPR tooth model for teeth movement planning.