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Multifactorial Analysis of Trueness in Computer-Assisted Implant Surgery: A Retrospective Study
Weie Song1,2, Chen Deng1,2, Chenyu Rao1,2
1State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
Clinical Oral Implants Research
|June 3, 2025
Summary
Robotic computer-assisted implant surgery (r-CAIS) demonstrated superior accuracy compared to static (s-CAIS) and dynamic (d-CAIS) approaches. All methods achieved clinically acceptable trueness, with bone inclination and molar placement impacting deviations.
Area of Science:
- Dental Implantology
- Surgical Navigation Technologies
- Medical Device Accuracy
Background:
- Computer-assisted implant surgery (CAIS) offers guided precision in dental procedures.
- Evaluating the trueness and acceptable deviation thresholds across different CAIS modalities is crucial for clinical application.
- This study retrospectively analyzed data from 314 implants in 194 patients.
Purpose of the Study:
- To determine clinically acceptable deviation thresholds for static (s-CAIS), dynamic (d-CAIS), and robotic (r-CAIS) approaches.
- To identify factors influencing implant trueness across these three computer-assisted implant surgery methods.
Main Methods:
- Retrospective analysis of 314 implants in 194 patients.
- Preoperative and postoperative CBCT scans were used to assess platform, apex, and angular deviations.
- Generalized linear mixed models (GLMM) identified factors associated with implant trueness.
Main Results:
- Robotic CAIS (r-CAIS) showed significantly smaller mean deviations (0.65mm platform, 0.73mm apex, 1.66° angular) compared to s-CAIS and d-CAIS.
- All CAIS approaches met clinical acceptability thresholds (1.5mm linear, 5° angular).
- Bone inclination >45° and placement in the molar region, especially the second molar, were associated with increased deviations.
Conclusions:
- All three CAIS approaches (s-CAIS, d-CAIS, r-CAIS) provide clinically acceptable trueness.
- r-CAIS exhibited superior accuracy over s-CAIS and d-CAIS.
- Bone inclination and molar region placement are significant factors affecting implant deviation accuracy.
