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Updated: Oct 7, 2025
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Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
Published on: May 24, 2022
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[An in vitro model study of computer-guided endodontic microsurgery]
1The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China.
Summary
Computer-guided navigation significantly improves accuracy and reduces operating time for endodontic microsurgery, especially for novice clinicians. Dynamic navigation and static navigation offer substantial benefits over freehand techniques.
Area of Science:
- Dental Surgery
- Endodontics
- Computer-Aided Surgery
Background:
- Endodontic microsurgery requires high precision.
- Operator experience significantly impacts surgical outcomes.
- Computer-guided navigation systems offer potential improvements.
Purpose of the Study:
- To compare the accuracy and operating time of endodontic microsurgery using freehand, dynamic navigation, and static navigation techniques.
- To evaluate the influence of operator experience (novice vs. expert) on these outcomes.
- To assess performance on a surgical simulation model.
Main Methods:
- 3D-printed jaw models with 120 teeth were used for microsurgery simulation (osteotomy and root resection).
- Two operators (novice and expert) performed procedures under freehand (FH), dynamic navigation (DN), and static navigation (SN) conditions.
- Accuracy (linear and angular deviations) and operating time were measured and compared using pre- and post-operative CBCT scans.
Main Results:
- Both novice and expert operators showed significantly lower entry and angular deviations with DN and SN compared to FH.
- Novices demonstrated greater improvements in accuracy with navigation techniques compared to experts.
- DN and SN significantly reduced operating time for both novice and expert operators, particularly for posterior teeth.
Conclusions:
- Dynamic and static navigation techniques enhance the accuracy of endodontic microsurgery.
- These navigation systems are particularly beneficial for novice clinicians, improving both precision and efficiency.
- Computer-guided surgery shows promise for standardizing and improving outcomes in endodontic microsurgery.
