1. Craniofacial Research Laboratory, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon
2. Department of Oral Surgery, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon
3. Department of Orthodontics, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon
4. Department of Orthodontics, Henry M. Goldman School of Dental Medicine, Boston, United States