Dental Prosthesis Design Using Candidate Tooth Matching
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Solution Overview
Problem
In dental prosthesis design, especially with CAD/CAM techniques, there is a need to accurately adjust interference or separation with adjacent teeth in the oral cavity, often requiring manual trial-and-error due to the absence of precise methods for matching the shape and position of natural teeth.
Innovation Solution
A computer-readable recording medium stores a program that searches a database of tooth structures to find candidate teeth based on surrounding shape information, applying priority levels to matching degrees and outputting information for optimal prosthesis design, reducing manual operations and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual trial-and-error operations are performed to adjust interference or separation with adjacent teeth, then the prosthesis can be finely adjusted to fit the oral cavity, but the productivity is reduced and the process becomes time-consuming
Solution Approach 1:
The patent creates a digital model (copy) of the patient's oral cavity including adjacent teeth, and uses this digital replica to simulate and determine the optimal prosthesis shape and position. This digital copying approach eliminates the need for manual trial-and-error adjustments while maintaining high precision in determining interference or separation with adjacent teeth.
Solution Approach 2:
The patent replaces the mechanical manual adjustment process with a computer-based calculation system. The computer automatically calculates the optimal prosthesis shape and position by processing digital models and applying predetermined rules, substituting the mechanical trial-and-error method with an automated computational approach that improves both efficiency and consistency.
2Manufacturing precision
If a database of tooth structures is searched and priority levels are applied to candidate teeth, then the accuracy of prosthesis design is improved, but the device complexity increases
Solution Approach 1:
The patent transforms the complex problem of prosthesis design into a parameter-based evaluation system. By converting tooth structure characteristics into comparable parameters and applying priority level rankings, the system simplifies the decision-making process while maintaining high accuracy in selecting candidate teeth that match the patient's oral cavity.
Solution Approach 2:
The patent performs preliminary actions by pre-establishing a database of tooth structures and predetermined rules for evaluation before the actual prosthesis design process. This preparatory work includes organizing tooth structure data and establishing matching criteria, which streamlines the subsequent design process and reduces the complexity of real-time decision-making.
Data Source
AI summary
A computer-readable recording medium having stored herein a program for causing a computer to execute a dental prosthesis design process includes: searching a database storing data including structures of teeth including natural teeth to search for candidate teeth, which correspond to a part where a prosthesis is to be mounted on, based on information of a shape surrounding the part where the prosthesis is to be mounted on; putting priority levels on the candidate teeth by applying a predetermined rule to a matching degree of the searching; and outputting information of the candidate teeth based on the priority levels.