Document Type : Original Article
Authors
1 Lecturer of Oral Medicine, Periodontology, Oral Diagnosis and Radiology, Faculty of Dentistry, Tanta University
2 Lecturer of Pedodontics Department, Faculty of Dentistry, KFS University
3 Lecturer of Oral Medicine, Periodontology, Oral Diagnosis and Radiology Department, Faculty of Dentistry, Tanta University
Abstract
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