1 St. Joseph University of Beirut, Beirut, Lebanon; Faculté d'Odontologie, Service d'ODF, Université de Lorraine, Vandoeuvre lès-Nancy, France. paul_fawaz@hotmail.com.
2 Cranio-Facial Research Laboratory, Faculty of Dental Medicine, St. Joseph University of Beirut.
3 Orthodontic and Dentofacial Orthopedics Department, Université de Lorraine, Vandoeuvre lès-Nancy, France.