Document Type : Original Article
Authors
1 Dentist at Department of Medical, Al-Azhar University, Cairo, Egypt
2 Professor and Head of Endodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt
3 Lecturer of Endodontics, Faculty of Dental Medicine (Assiut Branch), Al-Azhar University, Assiut, Egypt
Abstract
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