Orthodontic Bracket Positioning in 3D Dental Models
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Solution Overview
Problem
The process of positioning orthodontic brackets on teeth is challenging due to the need for precise placement, which is often subjective and difficult to achieve with existing methods that rely on visual determination and manual measurement, leading to potential misalignment and aesthetic or functional issues.
Innovation Solution
A computer-based system that allows practitioners to interactively position and orient virtual orthodontic appliances within a three-dimensional representation of a patient's dental arch, automatically adjusting the occlusal height of brackets to ensure precise placement based on specified desired positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurement and visual determination methods are used to position brackets, then the process is simple to perform, but the placement precision and accuracy deteriorate
Solution Approach 1:
The patent creates a three-dimensional digital copy of the patient's dental arch and teeth, allowing practitioners to position virtual brackets on the digital model. This virtual copying enables precise measurement and adjustment of bracket positions without the limitations of manual measurement on physical models, directly improving placement precision while keeping the actual bonding process simple.
Solution Approach 2:
The patent transitions from two-dimensional representations (such as photographs or physical models) to a three-dimensional digital environment. This dimensional enhancement allows for accurate spatial measurement and positioning of brackets in all three dimensions, enabling precise control of occlusal height and bracket location that cannot be achieved with traditional 2D methods.
2Manufacturing precision
If visual determination methods are used for bracket positioning, then the equipment required is simple, but the placement accuracy and objectivity deteriorate
Solution Approach 1:
The patent replaces manual mechanical measurement tools (rulers, protractors, calipers) with a computer-based three-dimensional digital system. The software automatically calculates precise bracket positions based on digital models of the teeth, eliminating the subjectivity and imprecision of manual measurement while providing objective, reproducible results.
Solution Approach 2:
The system enables practitioners to independently perform precise bracket positioning by interacting with the three-dimensional digital model. The software provides automated guidance and calculation, allowing the practitioner to achieve accurate positioning without requiring specialized training or complex manual measurement techniques, thus improving accessibility while maintaining high precision.
3Measurement precision
If manual measurement tools are used for bracket placement, then the process is straightforward, but the ability to precisely control occlusal height deteriorates
Solution Approach 1:
The patent performs preliminary three-dimensional scanning and digital modeling of the patient's dental arch before bracket positioning. This preliminary action creates a complete digital record of the oral anatomy, allowing for precise pre-calculation of optimal bracket positions and occlusal heights before the actual bonding procedure, thereby improving measurement precision while simplifying the clinical operation.
Solution Approach 2:
The system provides visual feedback by displaying the three-dimensional digital model with virtual brackets positioned at calculated optimal locations. The practitioner can review the proposed positions, make adjustments if needed, and confirm the final positioning. This feedback mechanism ensures precise occlusal height control while maintaining ease of operation through intuitive visual interaction.
Data Source
AI summary
A system automatically adjusts an orthodontic bracket to a desired occlusal height on a tooth within a 3D environment. The system allows a practitioner to specify a desired occlusal height at which to place the bracket on the tooth. The practitioner may choose the desired occlusal height from a standardized set of occlusal heights or may create a customized occlusal height to meet a patient's particular needs. Based on the desired occlusal height, the system automatically adjusts the placement of the orthodontic bracket to the desired occlusal height on the tooth within the 3D environment. The system then generates a visual representation the resulting bracket placement within the 3D environment.