Surgical treatment for dysesthesia after overfilling of endodontic material into the mandibular canal

Song,  Jae-Min; Kim,  Yong-Deok; Lee,  Jae-Yeol

doi:2016.54.11.874

J Korean Dent Assoc > Volume 54(11); 2016 > Article

The Journal of The Korean Dental Association 2016;54(11):874-879.
DOI: https://doi.org/10.22974/jkda.2016.54.11.004 Published online November 30, 2016.

하치조신경관으로 과충전된 근관치료 충전재에 의한 감각이상의 외과적 처치

송재민¹, 김용덕², 이재열³

^¹부산대학교 치의학전문대학원 구강악안면외과학교실
^²부산대학교 치의학전문대학원 구강악안면외과학교실
^³부산대학교 치의학전문대학원 구강악안면외과학교실

Surgical treatment for dysesthesia after overfilling of endodontic material into the mandibular canal

Jae-Min Song¹, Yong-Deok Kim², Jae-Yeol Lee³

¹Department of oral and maxillofacial surgery, School of dentistry, Pusan National University
²Department of oral and maxillofacial surgery, School of dentistry, Pusan National University
³Department of oral and maxillofacial surgery, School of dentistry, Pusan National University

Abstract

Damage to the inferior alveolar nerve(IAN) is a relatively infrequent complication in endodontic treatment. However, endodontic overfilling involving the mandibular canal may cause an injury of the inferior alveolar nerve resulting in sensory disturbances such as pain, dysesthesia, paresthesia or anesthesia. Two mechanism(chemical neurotoxicity and mechanical compression) are responsible for the IAN injury. When absorbent materials overfilled, it can be treated as a non-surgical procedure. But early surgical intervention required when mechanical, chemical nerve damage expected. We report surgical removal of overfilled gutta-percha and IAN decompression through sagittal split osteotomy in case of dysesthesia after overfilling of endodontic material into the mandibular canal. Dysesthesia recovered 3 months after surgical treatment.

Key Words: Inferior alveolar nerve damage;endodontic treatment;mandibular sagittal osteotomy;