Document Type : Original Article
Authors
1 Department of Oral medicine, Periodontology, Diagnosis and Oral Radiology Faculty of Dental Medicine, Al-Azhar-Boys, Cairo
2 Department of Oral Medicine, Periodontology, Diagnosis & Oral Radiology. al-azhar University
3 Oral medicine, Periodontology, Diagnosis, and Oral Radiology, Faculty of dental medicine, Azhar Boys Cairo.
Abstract
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