Non-invasive Management of Extra-oral Sinus with Radix-entomolaris: A Case Report

Endodontic failure is caused by a variety of factors such as improper mechanical debridement, bacteria persistence in the canals, poor obturation quality, under and overextension of the root canal filling, and coronal leakage. Clinically, the extraoral sinus tract of endodontic origin is confused with the cutaneous origin and sometimes it may get misdiagnosed. As a result, any cutaneous sinus tract involving the face or neck must be investigated for a dental cause. This case report describes the non-surgical management of an extra-oral sinus tract of odontogenic origin, which was the cause of long-standing endodontic failure.