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A deep learning system on monolithic implant-supported crown design: Evaluating AI-generated models against
Shuxin Ren1, Tao Wu2, Dong Zhou1
1Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing, China.
Summary
A new AI model for implant-supported crowns (ISCs) shows superior accuracy compared to traditional software. This AI approach better replicates technician designs for dental restorations, improving contour and fit.
Area of Science:
- Biomedical Engineering
- Artificial Intelligence in Dentistry
- Digital Dentistry
Background:
- Traditional CAD/CAM software for dental restorations can have limitations in replicating complex morphologies.
- The development of AI-driven tools offers potential for enhanced precision in digital dentistry.
Purpose of the Study:
- To evaluate a novel transformer-based deep learning model for generating monolithic implant-supported crowns (ISCs).
- To compare the AI model's performance against traditional software in creating ISCs.
Main Methods:
- A transformer-based AI model (PoinTr architecture) was trained and validated on digital impressions and technician-designed crowns.
- Four groups of ISCs were analyzed: two software-generated, one AI-generated, and one technician-designed (reference).
- Accuracy was assessed based on contour deviation, occlusal morphology, proximal contact, and emergence profile.
Main Results:
- AI-generated crowns exhibited significantly lower overall contour deviation compared to software-generated crowns.
- The AI model produced more accurate occlusal morphology and proximal contact distributions, resembling technician designs.
- AI crowns better reproduced desired concave emergence profiles, unlike the convex forms often generated by software.
Conclusions:
- AI-generated implant-supported crowns demonstrated superior approximation to technician designs compared to software-generated crowns.
- The AI model shows promise for improving the accuracy of monolithic implant-supported crown fabrication.
- Further research is warranted to fully integrate AI into clinical dental workflows.

