1Dental Material Research Center, Department of Endodontics, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
2Department of Endodontics, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
3Dental Student, Dental Student Research Committee, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
4Committee of Radiology Research Torabinejad Dental Research Center, Department of Radiology, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
5Post Graduate student of Oral and Maxillofacial Radiology, Dental Students Research Committee, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran