Prof. Belal MH, BDS, MSc (Egypt), PhD (Japan) is clinical professor, Periodontology, Oral Medicine & Oral Diagnosis, Faculty of Dentistry; Damanhour University; Egypt. His Ph.D. degree from Tanta University, Egypt; & Tokyo Medical & Dental University, Tokyo, Japan (2003~2005). He works as Editorial Board Member, Reviewer in International Journals; & reviewer for supreme council of Egyptian universities. Heworked as general supervisor for post graduate students, Faculty of Dentistry, Kafr-Elsheikh University, Egypt (2023); & head of Medical committee, Damanhour University, Egypt (2020-2023). He is member of Egyptian Dental Association. He published many research articles in several international & local Journals