Digital Orthodontic Appliance Coupling Matrix Visualization
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Solution Overview
Problem
In orthodontics, practitioners face challenges in precisely positioning orthodontic brackets on teeth due to the reliance on visual estimation, which can lead to inadequate fit and bond strength, especially with unique tooth surfaces, and existing digital techniques lack effective visualization tools for coupling matrix thickness and distribution.
Innovation Solution
A computer-based system that provides a 3D environment for modeling dental arches, allowing practitioners to interactively place orthodontic appliances and visualize the coupling matrix, including a color-coded thickness map to assess the fit and adjust bracket positions for optimal alignment and adhesive distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual estimation is used to position brackets on teeth, then the process is simple and quick, but the positioning precision and fit are insufficient
Solution Approach 1:
The patent creates a digital 3D copy of the patient's dental arch and teeth surfaces. This virtual model allows practitioners to position brackets digitally and visualize the coupling matrix without physically placing brackets on the patient's teeth, thereby improving positioning precision while keeping the actual clinical procedure simple.
Solution Approach 2:
The patent replaces the manual visual estimation method with a computer-based digital modeling system. The system uses software to create 3D models, calculate coupling matrices, and provide visual feedback, substituting the mechanical/visual estimation process with computational analysis to achieve more precise bracket positioning.
2Strength
If bracket position is adjusted to achieve better fit, then bond strength improves, but the time required for positioning increases
Solution Approach 1:
The patent performs preliminary digital positioning and coupling matrix analysis before actual bracket placement. By simulating the bracket-tooth interface in the digital model and evaluating the coupling matrix in advance, practitioners can identify and correct positioning issues before the clinical procedure, ensuring optimal bond strength without extending actual treatment time.
Solution Approach 2:
The patent provides visual feedback through the coupling matrix display, which shows practitioners how well a bracket will fit on a tooth surface. This immediate feedback allows for rapid adjustment of bracket position in the digital model to achieve optimal fit, guiding the practitioner to make precise adjustments that improve bond strength while minimizing trial-and-error time.
3Measurement precision
If digital 3D modeling is implemented, then measurement precision improves, but the complexity of the system increases
Solution Approach 1:
The patent introduces a digital 3D model as an intermediary between the physical tooth surface and the bracket placement decision. The coupling matrix calculation serves as a computational mediator that translates complex geometric relationships into visual information, allowing practitioners to work with simplified digital representations rather than directly analyzing complex physical geometries.
Data Source
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AI summary
A digital orthodontic treatment planning system provides a practitioner with digital representations of at least a part of a tooth of a patient and at least part of a coupling matrix within a three-dimensional environment. By interacting with the system, orthodontic practitioners are able to visualize a coupling matrix that results from a specific orthodontic appliance position relative to a tooth of the patient's dental arch. The digital representation of the coupling matrix represents a substance, such as a cured adhesive, that connects an orthodontic appliance to a tooth of a patient. The system determines a thickness of at least a portion of the coupling matrix. In one embodiment, the system indicates the total thickness via a thickness map, such as a color-coded thickness map. In another embodiment, the system indicates a deviation from a baseline thickness via a thickness map.