3D Tooth Data Rearrangement Using a Modified Arch Line
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Solution Overview
Problem
Existing orthodontic treatments face challenges in providing precise prosthetic products due to errors in manufacturing plaster casts, and there is a need for methods to modify treatment plans based on three-dimensional tooth data to create individualized treatment plans.
Innovation Solution
A data processing method that generates a second arch line different from a pre-generated first arch line, allowing for the rearrangement of tooth data by parallel movement and shape deformation, using virtual lines to determine the shortest distance and direction for precise alignment of teeth along the new arch line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a first arch line is generated based on tooth data and teeth are aligned to it, then tooth alignment is achieved, but the treatment plan cannot be customized when modification is needed
Solution Approach 1:
The system pre-generates a first arch line based on initial tooth data to establish baseline alignment. When customization is needed, this pre-generated arch line serves as the foundation for generating a second modified arch line, avoiding the need to start from scratch and enabling efficient treatment plan modifications
Solution Approach 2:
The arch line generation system allows dynamic modification from a static first arch line to a second arch line based on user input signals. The system can adjust the arch line shape and position interactively, enabling flexible customization of treatment plans while maintaining the underlying tooth alignment framework
2Manufacturing precision
If tooth data is moved along an arch line using conventional methods, then alignment is achieved, but rotation and overlapping occur reducing precision
Solution Approach 1:
The system moves tooth data strictly along the arch line path without allowing rotation or deviation from the defined trajectory. By constraining movement to the arch line equipotential path, the system prevents overlapping and rotation issues that occur in conventional methods, ensuring precise alignment while simplifying the movement operation
Solution Approach 2:
The arch line acts as an intermediary guide that mediates the movement of tooth data from one position to another. Instead of directly moving teeth which may cause rotation and overlapping, the system uses the arch line as a mediating path that ensures controlled, rotation-free movement and precise final alignment
3Measurement precision
If plaster casts are manufactured for orthodontic treatment, then physical models are obtained, but manufacturing errors reduce the precision of prosthetic products
Solution Approach 1:
The system creates a digital copy (tooth data) of the oral cavity structure, replacing the need for physical plaster casts. This digital copying approach eliminates manufacturing errors inherent in physical cast production while maintaining the ability to create accurate treatment models through computational processing
Solution Approach 2:
The system replaces the mechanical plaster casting process with a digital data processing system. Instead of physically manufacturing casts that are prone to errors, the system uses computational methods to process oral cavity data and generate precise treatment plans, substituting mechanical manufacturing with digital processing
Data Source
AI summary
The present disclosure relates to a data processing method and a data processing device. The data processing method, according to the present disclosure, comprises: generating, based on tooth data, a first arch line which is a spline curve in contact with contours of a plurality of teeth constituting the tooth data; generating, from the first arch line, a second arch line that is different from the first arch line; and moving a target tooth, which is to be moved, among the tooth data toward the second arch line according to an input signal of a user.