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[Nonradiological methods for implant surgical guide accuracy measurement].
Sheng-Jia Ye1, Shi-Jie Bao, Qu-Yi Chen
1Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology. Shanghai 200011, China.
Shanghai Kou Qiang Yi Xue = Shanghai Journal of Stomatology
|December 10, 2021
Summary
This study found that CAD/CAM-based evaluation accurately assesses dental implant placement accuracy, reducing patient radiation exposure compared to traditional radiology methods.
Area of Science:
- Dental Implantology
- Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM)
- Medical Imaging
Background:
- Static computer-navigated implantology utilizes surgical guides for precise placement.
- Traditional verification methods often involve radiological imaging, such as cone-beam computed tomography (CBCT).
- Evaluating the accuracy of these non-radiological methods is crucial for clinical application.
Purpose of the Study:
- To assess the accuracy of static computer-navigated dental implantations using surgical guides.
- To compare a non-radiological evaluation method with traditional radiological verification (CBCT).
Main Methods:
- Fifteen resin models underwent 30 template-guided implantations with planned paralleled bone-level implants.
- Postoperative implant positions were analyzed using both CAD/CAM (intraoral scanner) and CBCT methods.
- Deviations were quantified using Geomagic Studio 2013 software, with statistical analysis performed using SPSS.
Main Results:
- CAD/CAM-based evaluation showed a mean insertion axis deviation of 1.134° and mean horizontal shoulder/apex deviations of 0.447 mm and 0.557 mm.
- CBCT measurements indicated a trend toward greater deviations when directly compared.
- No significant difference was found in distance deviation measurements between the two assessment methods.
Conclusions:
- CAD/CAM-based evaluation systems offer precise and effective assessment of implant accuracy.
- This non-radiological approach significantly reduces patient radiation exposure.
- The CAD/CAM system is suitable for clinical evaluation of computer-navigated implantations.
