title: Bilateral oroantral fistulas following devitalization of teeth by arsenic trioxide: a case report.
abstract: Although it is well known that prolonged application or leakage of arsenic trioxide can cause severe damage to the periodontal tissues, the substance is still used by some dentists. This paper describes a case of arsenical necrosis of the jaws affecting the right and the left side of the maxilla. As a result of leakage into the tissues of an arsenical paste from the pulp chamber of endodontically treated teeth, bilateral oroantral fistula (OAF) occurred. It is concluded that there is no justification, whatsoever, for the use of arsenic in modern dental practice. In the following case, buccal advancement flap and submucosal palatal island flap techniques were used for to close the OAF. The submucosal palatal island flap technique resulted in successful closure of the OAF.
authors.affiliation: Istanbul University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Turkey.
authors.forename: Serhat
authors.initials: S
authors.lastname: Yalçin
authors.forename: Buket
authors.initials: B
authors.lastname: Aybar
authors.forename: Faruk
authors.initials: F
authors.lastname: Haznedaroğlu
authors.forename: Emre
authors.initials: E
authors.lastname: Yücel
mesh_terms: D000328:Adult; D000077237:Arsenic Trioxide; D001152:Arsenicals / Q000009:adverse effects*; D016025:Bone Transplantation; D005260:Female; D006801:Humans; D008443:Maxillary Sinus / Q000601:surgery; D009957:Oroantral Fistula / Q000139:chemically induced* / Q000601:surgery; D010020:Osteonecrosis / Q000139:chemically induced; D010087:Oxides / Q000009:adverse effects*; D012387:Root Canal Filling Materials / Q000009:adverse effects*; D012390:Root Canal Therapy / Q000009:adverse effects; D013524:Surgical Flaps; D019553:Tooth, Nonvital / Q000628:therapy*
chemical_list: D001152:Arsenicals; D010087:Oxides; D012387:Root Canal Filling Materials; D000077237:Arsenic Trioxide