Extraoral sinus tracts of endodontic origin are often misdiagnosed. The presence of these formations on the skin and, in some cases, their location at a distance from the odontogenic source lead to difficulties in the identification of these infections. It is important for these infections to be correctly diagnosed and separated from other lesions by dentists to prevent patients from being exposed to unnecessary medications and treatments. Root canal treatment of related tooth provides success in many cases of extraoral sinus tract of endodontic origin. The following case presents the management of a cutaneous sinus tract originating from a mandibular central incisor by conventional endodontic treatment.Keywords: Cutaneous sinus tract, endodontic therapy; extraoral sinus tract; odontogenic.