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The aim of this retrospective study was to describe the efficacy of management of bisphosphonate-related maxillary osteonecrosis, which had resulted in an oroantral fistula formation, by performing sequestrectomy, platelet-rich fibrin (PRF) and buccal fat pad (BFP) flap. A total of 7 patients diagnosed with stage III maxillary medication-related osteonecrosis according to guidelines of the American Association of Oral and Maxillofacial Surgeons. All patients complained of persistent pain, swelling and purulent drainage with sinusitis. In order to keep the i