3D Dental Prosthesis Surface Generation for Consistent Fit
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Solution Overview
Problem
Conventional methods for generating prostheses manually result in increased operator fatigue, variability in quality and time, and dependence on user proficiency, leading to inconsistent outcomes.
Innovation Solution
An automated method using 3D scan data to generate an intermediate, inner, and outer surface of a prosthesis, employing artificial intelligence neural networks to determine tooth parameters and surfaces, and connecting these surfaces to produce a high-quality prosthesis efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If automated prosthesis design software is used, then design time is reduced and precision is improved, but the software is expensive and requires specialized training
Solution Approach 1:
The automated design process is segmented into distinct functional modules: data acquisition from intraoral scanner, digital model generation, prosthesis design automation, and manufacturing instruction generation. Each module handles a specific aspect of the workflow, making the complex system manageable and reducing the learning curve while maintaining high precision through specialized algorithms in each segment
Solution Approach 2:
The system enables self-service by automatically generating prosthesis designs from scanned dental data without requiring manual intervention for measurements, model creation, or design calculations. The software autonomously processes the digital tooth models and generates optimized prosthesis geometries, eliminating the need for specialized training in traditional prosthodontic procedures while maintaining clinical precision
2Productivity
If conventional prosthesis fabrication is used, then initial cost is lower, but production time is longer and precision is reduced
Solution Approach 1:
The system replaces conventional mechanical measurement and fabrication methods with digital scanning and computer-aided design. The intraoral scanner captures precise 3D data of the patient's dentition, and the automated design software generates accurate prosthesis models, eliminating manual measurement errors and enabling direct digital manufacturing through 3D printing or CNC machining
Solution Approach 2:
The system performs preliminary digital planning and virtual try-in before actual manufacturing. The software allows clinicians to preview and adjust prosthesis designs digitally, optimize fit and aesthetics, and generate manufacturing instructions in advance, significantly reducing actual production time while ensuring high precision through pre-validated designs
Data Source
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AI summary
An automated method for generating a prosthesis from a three dimensional ("3D") scan data, the method includes generating an intermediate surface of the prosthesis extending toward an outside of a prepared tooth from a margin line of the prepared tooth in the 3D scan data, generating an inner surface of the prosthesis by determining a gap from a surface of the prepared tooth, generating an outer surface of the prosthesis and connecting the outer surface of the prosthesis and the intermediate surface of the prosthesis.