Document Type : Original Article
Authors
1 BDS, 2007G, Al-Azhar University, Demonstrator, Department of Endodontics, Faculty of Dental Medicine, Boys,Cairo, Al-Azhar University
2 Professor of Endodontics, Endodontic Department, Faculty of Dental Medicine, Boys, Cairo, Al Azhar University
3 Assistant Professor of Endodontics, Endodontic Department, Faculty of Dental Medicine, Boys, Cairo, Al Azhar University
Abstract