Document Type : Original Article
Authors
1 Oral medicine periodontology radiology and diagnosis Faculty of Dentistry
2 oral medicine, faculty of oral medicine, al-azhar university, girls branch
3 Professor of Oral Medicine, Periodontology, Oral Diagnosis, and Dental Radiology Department, Faculty of Dental Medicine, Girls branch, Al-Azhar University
4 Oral &Maxillofacial surgery department, Faculty of Dentistry, Sinai University
Abstract
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