Intraoral Feedback System for Prosthodontic Geometry Validation
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Solution Overview
Problem
In prosthodontic procedures, accurate measurement and preparation of the dental site are crucial for a proper fit of dental prostheses, but existing methods often result in suboptimal designs due to incomplete or undefined models, leading to re-scanning or rework, which complicates the process and may lead to less than optimal outcomes.
Innovation Solution
A method and system that provide feedback data by creating a numerical entity of the intra-oral cavity's three-dimensional surface geometry, allowing for real-time manipulation and determination of relationships between desired data and procedures, generating feedback to ensure suitable geometry for prosthesis placement, including suggestions for adjustments to the finish line, insertion path, and dimensions, facilitating optimal prosthesis design and installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the dental site is scanned or modeled using known methods, then a virtual or real model of the site is obtained, but the model may be deficient or undefined in certain areas, requiring re-scanning or rework
Solution Approach 1:
The system provides real-time feedback during the scanning and preparation process by analyzing the numerical entity and generating feedback data that indicates whether the finish line geometry is suitable for receiving a prosthesis. This allows the dental practitioner to make immediate adjustments rather than waiting for model review later, thereby preventing re-scanning and reducing time loss.
Solution Approach 2:
The system performs preliminary analysis of the finish line geometry and provides feedback before the prosthesis manufacturing process begins. By evaluating the numerical entity and determining relationships between desired data and procedures in advance, the system identifies potential deficiencies early, allowing corrections to be made before time-consuming re-scanning or rework is necessary.
2Manufacturing precision
If the dental practitioner prepares the dental site and constructs a positive model or scans the site, then a model is provided to the dental lab, but the model may be rejected if deficient, requiring rework
Solution Approach 1:
The system embeds feedback mechanisms within the scanning and preparation workflow, providing real-time evaluation of finish line geometry and insertion path suitability. This continuous feedback loop ensures that the model meets manufacturing requirements before being sent to the dental lab, reducing rejection rates and the need for complex rework procedures.
Solution Approach 2:
The system acts as an intermediary between the dental practitioner's preparation work and the dental lab's manufacturing process. By automatically analyzing the numerical entity and generating feedback data about geometry adequacy, the system bridges the gap between clinical preparation and laboratory manufacturing, ensuring smooth transition without rejection or complex rework.
3Productivity
If real-time feedback is provided during prosthodontic procedures, then accuracy and efficiency are enhanced, but the system complexity increases
Solution Approach 1:
The system implements feedback by automatically analyzing the numerical entity and generating feedback data that indicates whether the finish line geometry and insertion path are suitable. This automated feedback mechanism provides real-time guidance without requiring complex manual evaluation processes, thereby enhancing productivity while keeping system complexity manageable through algorithmic automation.
Solution Approach 2:
The system replaces manual visual inspection and subjective judgment with automated computer-based analysis of the numerical entity. By using algorithms to determine relationships between desired data and procedures, the system substitutes complex human cognitive processes with automated computational methods, improving efficiency while managing system complexity through software-based solutions.
Data Source
AI summary
Feedback data useful in prosthodontic procedures associated with the intra oral cavity is provided. First, a 3D numerical model of the target zone in the intra oral cavity is provided, and this is manipulated so as to extract particular data that may be useful in a particular procedure, for example data relating to the finish line or to the shape and size of a preparation. The relationship between this data and the procedure is then determined, for example the clearance between the preparation and the intended crown. Feedback data, indicative of this relationship, is then generated, for example whether the preparation geometry is adequate for the particular type of prosthesis.