Related Experiment Video
Updated: May 18, 2026
Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System
Published on: May 5, 2022
Accuracy of dynamic navigation compared with static navigation for guided endodontic microsurgery: A randomised
Chen Chen1, Rui Zhang1, Li Qin1
1State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Cariology and Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
Dynamic navigation (DN) shows greater accuracy than static navigation (SN) in endodontic microsurgery (EMS) endpoint deviation. Both guided technologies offer clinically acceptable results for osteotomy and root-end resection.
Area of Science:
- Endodontic Microsurgery
- Surgical Navigation Technologies
- Dental Cone-Beam Computed Tomography
Background:
- Endodontic microsurgery (EMS) accuracy is crucial for successful outcomes.
- Static navigation (SN) and dynamic navigation (DN) are emerging technologies to guide EMS procedures.
- Comparing the accuracy of SN and DN in osteotomy and root-end resection is essential for clinical application.
Purpose of the Study:
- To compare the accuracy of static navigation (SN) and dynamic navigation (DN) assisted endodontic microsurgery (EMS).
- To evaluate accuracy in both osteotomy and root-end resection phases of EMS.
- To provide data for optimizing and promoting guided endodontic technologies.
Main Methods:
- Prospective, single-blind, randomized clinical trial involving 18 patients undergoing EMS.
- Procedures performed using either SN or DN systems.
- Postoperative cone-beam computed tomography (CBCT) data compared with preoperative virtual plans to assess deviations (SD, ED, AD, RLD, RAD).
Main Results:
- The static navigation (SN) group showed significantly greater end-point deviation (ED) compared to the dynamic navigation (DN) group (p=0.02).
- No significant differences were found between SN and DN for start-point deviation (SD), angular deviation (AD), root-end resection length deviation (RLD), or root-end resection angle deviation (RAD).
- Both navigation systems achieved clinically acceptable accuracy.
Conclusions:
- Dynamic navigation (DN) offers superior accuracy at the surgical endpoint in EMS.
- DN may be advantageous in complex cases requiring precise localization near critical anatomical structures.
- Findings support the broader clinical adoption of guided endodontic technologies.
