Graduating from Saint Joseph University in Lebanon with a degree in Dental Surgery, Dr. Mazen went on to specialize in Endodontology, becoming proficient in the finest details of this specific subject in dentistry since it is dealing with complicated internal anatomy of the individual tooth – treatment popularly called RCT. Endodontology is a field that he truly enjoys and one that he actively pursued due to its challenging and ever-evolving nature. He gained his experience through several prestigious dental clinics in Beirut, such as Johns Hopkins-Affiliated Clemenceau Medical Center, one of the largest medical centres in Beirut and  through dental department in Military Hospital as well.