Dr. Nicolas Nassar earned his Doctor in Dental Surgery (DCD) with honors and a Master in Orthodontics with honors from Saint Joseph University of Beirut, Lebanon. He also completed a Certificate in Tweed Technique (USA) and a Master in Clear Aligners (Madrid). He is a lecturer at Saint Joseph University (Beirut, Lebanon), a clinical instructor in the Orthodontics and Digital Dentistry, AI, and Evolving Technologies Departments, and a research assistant at the Cranio-Facial Research Laboratory. In private practice, Dr. Nassar specializes in clear aligner therapy, integrating the latest digital technologies. Dr. Nassar has delivered international lectures and certification courses. His interests include interproximal reduction, vertical dimension control, self-ligation, aligners and mini-implants. He is a member of the Digital Dentistry Society and the Lebanese Orthodontic Society.