Document Type : Original Article
Authors
1 Department of Oral Medicine, Periodontology, Diagnosis & Oral Radiology, faculty of dental medicine, October 6 university
2 Periodontology, Oral medicine, Diagnosis and Oral Radiology, faculty of dental medicine, Azhar Boys Cairo.
3 Alazhar University
4 Department of Oral Medicine, Periodontology, Diagnosis & Oral Radiology. al-azhar University
Abstract
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