Authors
1 Department of Oral Medicine, Periodontology, Oral Diagnosis and Dental Radiology, Faculty of Dental Medicine, Al-Azhar University, Assiut branch, Egypt.
2 Department of Oral Medicine, Periodontology, Oral Diagnosis and Dental Radiology, Al-Azhar University (Assiut Branch), Egypt
3 Department of Oral Medicine, Periodontology, Oral Diagnosis and Dental Radiology, Faculty of Dental Medicine, (Assuit, boys), Al-Azhar University, Egypt.
4 Department of oral and Maxillofacial Radiology, Faculty of Dentistry Minia University, Egypt
Abstract
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