1. Department of Oral and Maxillofacial Surgery Taleghani University Hospital, Shahid Beheshti University of Medical Sciences Tehran Iran
2. Department of Oral and Maxillofacial Surgery, School of Dentistry Zahedan University of Medical Sciences Zahedan Iran
3. Department of Oral and Maxillofacial Pathology Shahid Beheshti University of Medical Sciences Tehran Iran