Authors
1 Demostrator at Oral Medicine, Diagnosis and Periodontology Department, Faculty of Oral and Dental Medicine- Nahda University
2 Prof. of Oral Medicine, Diagnosis and Periodontology Department, Faculty of Dentistry, Minia University
3 Ass. Prof. of Oral Medicine, Diagnosis and Periodontology Department, Faculty of Dentistry, Suez Canal University
4 Lecturer of Oral Medicine, Oral Diagnosis and Periodontology Departmement Faculty of Dentistry, Minia University
Abstract