1. 1Department of Oral Medicine and Maxillofacial Radiology, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon
2. 2Department of Restorative and Esthetic Dentistry, Faculty of Dental Medicine, Saint Joseph University, Beirut, Lebanon
3. 3Department of Prosthodontics, Faculty of Dental Medicine, Saint Joseph University, Beirut, Lebanon
4. 4Department of Periodontology, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon
5. 5Department of Ophthalmology, Cantonal Hospital, Winthertur, Switzerland