Intermediate Prosthesis Sectioning for Digital Dental Model Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Full arch implant rehabilitation is time-consuming and requires multiple patient visits, with complex record-keeping and prolonged healing times, while achieving precise geometric and positional accuracy remains challenging.
Innovation Solution
A method involving scanning a pre-existing prosthesis to generate an intermediate prosthesis, which is modified and sectioned to create a final digital model, allowing for digital manipulation and fabrication of a final working prosthesis with improved configurational accuracy, reducing patient visits and healing time by utilizing existing technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional full arch implant rehabilitation methods are used, then geometric and positional accuracy can be achieved, but the number of patient visits and healing time increase significantly
Solution Approach 1:
The method performs preliminary digital planning and creates a virtual representation of the final prosthesis before actual fabrication. The intermediate prosthesis is designed and sectioned in advance, allowing all configurational changes to be captured digitally before the patient's healing phase, thereby reducing the need for multiple adjustment visits.
Solution Approach 2:
The invention creates a digital copy (virtual representation) of the final prosthesis configuration based on scans of the intermediate prosthesis. This digital model can be manipulated and refined without physical prototypes, eliminating the need for multiple trial fittings and reducing patient visits while maintaining high geometric accuracy.
2Reliability
If multiple patient visits are conducted for traditional rehabilitation, then proper records can be maintained, but the complexity of record-keeping and treatment steps increases
Solution Approach 1:
The method replaces traditional mechanical record-keeping methods (physical impressions, manual measurements, paper records) with a digital scanning and modeling system. The intraoral scanner captures precise digital impressions, and software automatically maintains treatment records, reducing administrative complexity while improving accuracy.
Solution Approach 2:
The invention merges multiple treatment steps into a unified digital workflow. Configuration changes, coping positioning, and prosthesis design are all integrated into the virtual representation, allowing simultaneous optimization of multiple parameters in one digital model rather than through separate sequential steps.
3Ease of manufacture
If the intermediate prosthesis is made as a single piece, then fabrication is simpler, but achieving passive fit becomes difficult
Solution Approach 1:
The intermediate prosthesis is divided into multiple sections that can be independently positioned and adjusted. Each section can be optimized for passive fit against the underlying structures, and the sectioned design allows for easier digital scanning and manipulation while maintaining manufacturing simplicity through standardized section interfaces.
Data Source
AI summary
Methods for generating and providing a full arch prosthesis from a pre-existing prosthesis are presented, starting from the pre-existing prosthesis. This prosthesis is removed from the mouth, scanned, and replaced within the mouth. An intermediate prosthesis is generated from the scan, and modified to match a final physiological target configuration of the patient's mouth. The intermediate prosthesis is used to generate a final virtual representation of the target configuration, from which final virtual representation the final working prosthesis is fabricated. The intermediate prosthesis is mounted in the patient's mouth in sections, for desirable repositioning, sections then being bonded together. Copings can be digitally subtracted to enable press fit new copings to be installed. Alternatively, the intermediate prosthesis can include integrated false copings. The intermediate prosthesis is scanned to generate a final digital model or virtual representation of the desired final prosthesis. The final working prosthesis may then be fabricated using the final virtual representation.