1. Department of Oral and Maxillofacial Surgery, King Fahad University Hospital, Khobar, Saudi Arabia
2. Department of Oral and Maxillofacial Surgery, King Fahad Military Medical Complex, Dhahran, Saudi Arabia
3. Department of Oral and Maxillofacial Surgery, King Khalid Hospital, Alkharj, Saudi Arabia
4. Department of Biomedical Dental Science, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia