title: A persistent oronasal sinus tract of endodontic origin.
abstract: Extraoral sinus tracts of endodontic origin may be confused with a wide variety of diseases. Although they may be located in a variety of sites on the face and neck, once diagnosed the treatment is relatively simple and successful. Endodontic therapy is the treatment of choice in these cases; however, periapical surgery may occasionally be required. A case of persistent oronasal sinus is described in which healing occurred only after surgical removal of the involved lesion.
authors.forename: I
authors.initials: I
authors.lastname: Heling
authors.forename: I
authors.initials: I
authors.lastname: Rotstein
mesh_terms: D000328:Adult; D006801:Humans; D007180:Incisor; D008297:Male; D009296:Nasal Cavity; D009957:Oroantral Fistula / Q000601:surgery; D012390:Root Canal Therapy