1. Associate Professor, Department of Oral and Maxillofacial Radiology, School of Dentistry, Shahid Beheshti University Of Medical Sciences, Tehran 1983969411, Iran
2. Dental student, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran 1983969411, Iran
3. Assistant Professor, Department of Oral and Maxillofacial Radiology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran 1983969411, Iran