Non-Surgical Endodontic Management of an Extraoral Cutaneous Sinus Tract of a Two Canal Mandibular Canine with Instrument Separation: A Case Report

Abstract

Extraoral sinus tracts stemming from endodontic infections often mimic various other pathological conditions, making accurate differential diagnosis critical for proper management. Misdiagnosis can lead to ineffective treatment outcomes or unwarranted therapeutic interventions, underscoring the necessity of precise clinical evaluation. Hence, consideration of an odontogenic cause must be accounted while dealing with cutaneous sinus tracts involving the face or neck. This case report describes the complete resolution of an extraoral cutaneous sinus tract and healing of the periapical region through non-surgical endodontic therapy involving the separation of two instruments. The separation of two instruments in the apical portion further complicated the treatment as it did not allow the instruments to reach till the working length. Two-month follow-up showed closure of the sinus opening with minimal scar formation.