Document Type : Original Article
Authors
1 Dentist at Al -Azhar medical administration Girls branch.
2 Professor of Oral medicine, periodontology, Oral Diagnosis and Radiology Faculty of Dentistry for Girls, Al-Azhar University, Cairo, Egypt.
3 Lecturer of Oral medicine, periodontology, Oral Diagnosis and Radiology Faculty Dentistry for Girls, Al Azhar University, Cairo, Egypt.
Abstract
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