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Updated: Jun 7, 2026
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Dynamic Navigation for Dental Implant Placement
Published on: September 13, 2022
Accuracy and Efficiency of Dynamic Computer-Assisted Implant Surgery Using Three Different Registration Methods-A
Toshiki Nojiri1, Kevser Pala2,3, Ryo Yamamoto1
1Division of Fixed Prosthodontics and Oral Implantology, Department of Prosthodontics, Faculty of Dental Medicine, Iwate Medical University, Morioka, Japan.
Clinical Oral Implants Research
|June 6, 2026
Summary
Different registration methods in dynamic computer-assisted implant surgery (d-CAIS) minimally impact accuracy. The XM registration method showed the lowest angular deviation, suggesting system-specific factors influence precision in dental implant placement.
Area of Science:
- Dentistry
- Surgical Technology
- Biomedical Engineering
Background:
- Accurate dental implant placement is crucial for long-term success.
- Dynamic Computer-Assisted Implant Surgery (d-CAIS) enhances precision with real-time feedback.
- Limited comparative data exists on d-CAIS registration methods' accuracy and efficiency.
Purpose of the Study:
- To evaluate the influence of different registration methods in d-CAIS systems on implant placement accuracy.
- To assess the impact of these registration methods on procedural time.
Main Methods:
- A laboratory study involving three registration methods (ND, XC, XM) was conducted.
- Five experienced operators placed 75 implants in partially edentulous maxillary models.
- Postoperative CBCT scans measured deviations (entry point, apex, depth, angle); statistical analysis used ANOVA and Tukey's HSD test.
Main Results:
- Mean 3D entry point deviations: ND (1.06mm), XC (0.71mm), XM (0.90mm).
- Mean 3D apex deviations: ND (1.23mm), XC (0.83mm), XM (1.07mm).
- Angular deviation was significantly lower in the XM group (1.02°) compared to ND (2.96°). Procedural time was shortest in the XM group.
Conclusions:
- Registration methods have a minimal effect on overall implant placement accuracy.
- System-specific factors may influence angular deviation in d-CAIS.
- Future research should focus on clinical trials and operator learning curves.
