1 Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, PO box: 65506, Riyadh, 11588, Saudi Arabia. dr-ajlan2006@hotmail.com.
2 Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, PO box: 65506, Riyadh, 11588, Saudi Arabia.
3 Stem Cell Unit, Anatomy Department, Collage of Medicine, King Saud University, Riyadh, Saudi Arabia.
4 Department of Endocrinology and Metabolism, Endocrine Research Laboratory (KMEB), Odense University Hospital & University of Southern Denmark, Odense, Denmark.
5 Dean of Preparatory Year, Saudi Electronic University, King Saud University, Riyadh, Saudi Arabia.