1. Oral and Maxillofacial Surgery Department, College of Dentistry, King Khalid University, Abha, Saudi Arabia
2. Frankfurt Orofacial Regenerative Medicine (FORM) Lab, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of Goethe University Frankfurt, Frankfurt am Main, Germany
3. Oral Pathology Department, College of Medicine, University of Ibadan, Nigeria