Document Type : Original Article
Authors
1 Lecturer of Operative Dentistry department Faculty of Dental Medicine, Nahda University, Beni-suief, Egypt.
2 Lecturer of Endodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt.
3 Assistant Professor of Operative Dentistry, Faculty of Dental Medicine (Cairo-Boys), Al-Azhar University, Cairo, Egypt.
Abstract
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