Document Type : Original Article
Authors
1 BDS, Faculty of Dental Medicine, Sinai University, Egypt
2 Professor of Oral and Dental Biology, Head of Oral and Dental Biology Department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt.
3 Lecturer of Oral and Dental Biology, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt
Abstract
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