MAXILLARY MOLAR ROOT FRACTURE CAUSED BY SINUS SURGERY - CASE-REPORT

A case is presented in which a horizontal root fracture of the mesiobu ccal root of a maxillary first molar was diagnosed as the source of a patient's chronic pain. Horizontal root fractures are rare in posterio r teeth. The source of the fracture was determined to be trauma from a ccess or curettage during two Caldwell-Luc sinus procedures. A detaile d history and endodontic retreatment led to the diagnosis. A mesiobucc al root resection resolved the chronic pain.