Document Type : Original Article
Authors
1 Assistant lecturer of Endodontics, Faculty of Dental Medicine for Girls, Al-Azhar University.
2 Professor of Endodontics, Endodontic Department, Faculty of Dental Medicine for Girls, AL-Azhar University.
3 Associate Professor of Endodontics, Endodontic Department, Faculty of Dental Medicine for Girls, AL-Azhar University
Abstract
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