Document Type : Original Article
Authors
1 periodontology, faculty of dentistry, Alexandria university , Egypt
2 Professor, Department of Oral Medicine, Periodontology, Oral Diagnosis and Radiology, Faculty of Dentistry, Alexandria University
3 Oral Medicine, Periodontology, Oral Diagnosis and Oral Radiology Department , Faculty of dentistry , Alexandria university
4 Professor, Department of Oral Biology, Faculty of Dentistry, Alexandria University, Egypt
Abstract
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