Surgical extraction of a sublingually-displaced retained root with the aid of a magnetic field-based dynamic navigation system: a case study
10.5125/jkaoms.2024.50.6.367
- Author:
Yoo-Sung NAM
1
;
Seung-Eun LEE
;
Sung-Ah CHE
;
Sang-Yoon PARK
;
Soo-Hwan BYUN
;
Byoung-Eun YANG
;
Sangmin YI
Author Information
1. Department of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea
- Publication Type:CASE REPORT
- From:Journal of the Korean Association of Oral and Maxillofacial Surgeons
2024;50(6):367-372
- CountryRepublic of Korea
- Language:English
-
Abstract:
The submandibular displacement of a mandibular third molar residual root presents major challenges to oral and maxillofacial surgeons due to the proximity to critical anatomical structures such as the lingual nerve and sublingual artery. Preoperative imaging can approximate the location of the residual tooth root; however, accurately determining its exact position is difficult because of the dynamic nature of the mandible and the difficulty of realtime synchronization of imaging. This study presents the successful extraction of a residual mandibular third molar root in a 67-year-old female patient achieved using a magnetic field-based navigation system. The sublingually-displaced residual root was localized using the navigation system, marked using a virtual implant placement, and positioned by a hand piece using synchronized real-time sensor data. The root was successfully removed with a minimally-invasive approach. No complications occurred postoperatively, and follow-up showed no major issues. Due to the small size of the marker, ease of calibration, and independence from visual obstacles, magnetic field-based navigation systems are a promising tool for the removal of residual roots displaced into adjacent soft tissue.
