title: Chronic cutaneous draining sinus of dental origin.
abstract: Extra oral sinus of odontogenic origin occurs when the purulent by-products of dental pulp necrosis spread along the path of least resistance from the root apex to the skin on the face. Patients presenting with cutaneous sinus usually visit a general physician or dermatologist first, as the lesion can mimic various dermatologic pathologies, ranging from an infected sebaceous cysts to a basal cell carcinoma. Despite systemic antibiotics, symptoms often persist causing further confusion, and at times leading to unnecessary surgical interventions. The location of this sinus in the head and neck region should lead the physician to seek a dental opinion in order to avoid misdiagnosis.
authors.affiliation: Department of Dentistry, PGIMER and Dr. RML Hospital, New Delhi, India.
authors.forename: N
authors.initials: N
authors.lastname: Sisodia
authors.affiliation: Department of Conservative Dentistry and Endodontics, JSS Dental College and Hospital, Mysore, Karnataka, India.
authors.forename: Mk
authors.initials: M
authors.lastname: Manjunath
keywords: Dental fistula; Localized drug delivery; Root canal treatment