Orthodontic Device Design Using Frankfort Plane Orientation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current software solutions for orthodontic treatment planning lack the precise orientation of three-dimensional tooth models in space, leading to inaccuracies in torque computations, smile arc, and axial inclinations due to the occlusal plane being parallel to the floor, rather than being correctly aligned with the Frankfort horizontal plane.
Innovation Solution
A method and system that determine the Frankfort horizontal plane from lateral cephalometric images and use it to orient three-dimensional tooth models anatomically accurately in space, ensuring the occlusal plane is correctly positioned relative to the skeletal context, using graphical user interface controls and pattern matching algorithms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the occlusal plane is positioned parallel to the floor in software interfaces, then the interface is simple and easy to operate, but the orientation of three-dimensional tooth models becomes inaccurate, leading to errors in torque computations, smile arc, and axial inclinations
Solution Approach 1:
The patent introduces a new dimensional reference system by integrating lateral cephalometric images as a background reference plane. This allows the occlusal plane to be oriented relative to the Frankfort horizontal plane in three-dimensional space, rather than simply parallel to the two-dimensional screen. The cephalometric image provides an additional spatial dimension for accurate anatomical orientation while maintaining interface simplicity through automated alignment algorithms.
2Manufacturing precision
If automated orientation methods are implemented using lateral cephalometric images, then measurement precision and manufacturing precision are improved, but device complexity and computational requirements increase
Solution Approach 1:
The system performs self-alignment by automatically detecting anatomical landmarks (such as the Frankfort horizontal plane) from the lateral cephalometric image and autonomously orienting the three-dimensional tooth model accordingly. The software identifies key features, calculates the appropriate orientation transformation, and applies it without requiring manual intervention from the dental practitioner, thereby reducing operational complexity despite the advanced computational methods employed.
Data Source
AI summary
A computational device determines a representation of one or more anatomical features, and based on the determined representation of the one or more anatomical features, a three-dimensional model is oriented in a three-dimensional space in an anatomically accurate manner. Thereafter, an orthodontic device design is created using the oriented three dimensional model and an orthodontic device is manufactured based at least in part on the orthodontic device design.