Dr. Ahmad Rahhal was born in Bethlehem, Palestine 1973He is an Associate Professor in the department of Orthodontics Faculty of Dentistry, Arab American University, Palestine. He graduated from Hacettepe University, Faculty of Dentistry in 1998 and received his PhD and specialty from Faculty of Dentistry, Department of Orthodontics, Gazi University-Turkiye. He is a member of Arab Orthodontic Society, European Orthodontic Society, WFO & Palestinian Orthodontic Society. He has a lot of international publications, and he was an invited speaker in many national and international orthodontic congresses. His academic interests include functional orthopedic treatment and biomechanichs.