title: Bisphosphonate-Induced Osteonecrosis of the Maxilla Resembling a Persistent Endodontic Lesion.
abstract: A 52-year-old Caucasian woman suffering from pain in the anterior maxillary region, presented to the clinic. Examination revealed a draining sinus tract in the buccal vestibule of the maxilla in the left anterior segment and expansion in the middle of palate. On conventional radiographic examination the lesion was initially assumed to be a periapical problem related to the incisors but subsequently it was diagnosed to be a bisphosphonate osteonecrosis.
  
  
  CONCLUSIONS
  Acquiring a comprehensive medical history from the patients, conducting the clinical vitality tests and most importantly being familiar with the non-odontogenic lesions that can be side effects of specific medications are important requirements for reaching a correct diagnosis.
authors: Oral and Maxillofacial Radiology Department, Shahid Beheshti University of Medical Sciences, Dental School, International Branch, Tehran, Iran;
authors: Hossein
authors: H
authors: Mosaferi
authors: Department of Endodontics, Dental Branch, Islamic Azad University of Medical Sciences, Tehran, Iran;; Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran;
authors: Mahta
authors: M
authors: Fazlyab
authors: Oral and Maxillofacial Radiology, Dental School, Jondy Shapoor University, Ahvaz, Iran.
authors: Sanaz
authors: S
authors: Sharifi
authors: Oral and Maxillofacial Radiology Department, Shahid Beheshti University of Medical Sciences, Dental School, International Branch, Tehran, Iran;
authors: Sepideh
authors: S
authors: Rahimian
keywords: Bisphosphonate; Breast Cancer; Osteonecrosis; Periapical Pathosis