Document Type : Original Article
Authors
1 B.D.S Faculty of Oral and Dental Medicine, Cairo University (2007).
2 Professor and Head of Endodontics Department, Faculty of Dental Medicine for Girls, Al-Azhar University (Girls’ Branch), Cairo, Egypt.
3 Professor of Endodontics, Faculty of Dental Medicine for Girls, AL-Azhar University (Girls’ Branch), Cairo, Egypt.
Abstract
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