Corresponding Author

Mahmoud Ahmed Elhadad

Oral Medicine, Periodontology, Oral Diagnosis and Oral Radiology Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt

Correspondence

Mahmoud Ahmed Elhadad, Oral Medicine, Periodontology, Oral Diagnosis and Oral Radiology department, Faculty of Dentistry, Alexandria University, 15 Abd-Elfatah Eltaweel st., Fleming, Alexandria, Egypt.

Email: Elhadad2008@gmail.com

Contribution: Conceptualization, Data curation, Funding acquisition, ​Investigation, Methodology, Writing - original draft, Writing - review & editing