1. Department of Oral and Maxillofacial Surgery, Najran Dental Speciality Centre, Najran, Saudi Arabia
2. Department of Dental and Maxillofacial Surgery, New Najran General Hospital (NNGH), Najran, Saudi Arabia
3. Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, College of Health Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria