1. Department of Prosthetic Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
2. Department of Oral and Maxillofacial Prosthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
3. Department of Dental Technology, Applied Medical Science, King Khalid University, Abha, Saudi Arabia
4. Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
5. Department of Prosthetic Dentistry, College of Dentistry, King Khalid University, Abha, Saudi Arabia
6. Restorative and Prosthetic Dental Science Department, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
7. King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
8. Resident Services in OMFS, Mohmmad Bin Nasser Hospital (MOH), Jazan, Saudi Arabia
9. Private Practice, Riyadh, Saudi Arabia
10. Substance Abuse and Toxicology Research Center, Jazan University, Jazan, Saudi Arabia
11. Medicinal and Aromatic Plants and Traditional Medicine Research Institute, National Center for Research, Khartoum, Sudan