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Time efficiency and precision of splinted complete arch implant scanning
Aly Abdelrehim1, Eshamsul Bin Sulaiman2, Hazrina Sofian3
1Graduate PhD student, Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia.
The Journal of Prosthetic Dentistry
|March 14, 2025
Summary
A novel scan-aid apparatus significantly enhances the precision and efficiency of complete arch implant scanning by adding reference points. This improves digital impressions for dental restorations.
Area of Science:
- Dental technology
- Digital dentistry
- Implantology
Background:
- Intraoral scanners struggle with complete arch implant scanning accuracy due to lack of anatomical features and reference points.
- Image stitching errors commonly occur in scanner software during complete arch scanning.
Purpose of the Study:
- To evaluate a new scan-aid apparatus for complete arch implant scanning.
- To assess the impact of geometric heterogeneity and added reference points on scanning precision and time efficiency.
Main Methods:
- 60 scans were performed using an intraoral scanner in three clinical simulations, with and without the scan-aid apparatus.
- 3D inspection software assessed scan precision by comparing test scans to a reference scan.
- Scanning time (total, actual, and lost) was measured to evaluate time efficiency.
Main Results:
- The scan-aid apparatus significantly improved scanning precision compared to controls.
- Scanning with the scan-aid apparatus was significantly more time-efficient.
- The use of additional reference points and geometric heterogeneity enhanced scanning outcomes.
Conclusions:
- The scan-aid apparatus effectively addresses limitations in complete arch implant scanning.
- Geometric heterogeneity and additional reference points are crucial for improving intraoral scanning accuracy.
- The developed apparatus offers a practical solution for more precise and efficient digital impressions in implant dentistry.
