Document Type : Original Article
Authors
1 Demonstrator of Periodontology and Oral Medicine and Diagnosis Department, Faculty of Dental Medicine, Misr University for science and technology, Cairo, Egypt
2 Professor of Oral Medicine, Periodontology, Oral Diagnosis and Dental Radiology Department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt
3 Professor and the head of Oral Medicine, Periodontology, Oral Diagnosis and Dental Radiology Department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt
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