1. Department of Substitutive Dental Sciences, College of Dentistry Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
2. Department of Restorative Dental Sciences, College of Dentistry Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
3. Department of Clinical Affairs College of Dentistry Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
4. Department of Biophysics, Institute for Research and Medical Consultations Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia