Yaz completed his post-graduate Orthodontic training at the University of Paris, France, from 2002 to 2006. He holds 3 post-graduate degrees in Orthodontics: Certificate of Post-graduate Studies in Dento-Facial Orthopaedics (CES) with distinction from the University of Paris V, France, Diploma in Applied Paediatric Orthodontics (DUOPA) and Diploma in Paediatric Orthodontics (DUOP) from the University of Paris VI, France. He obtained his BDS (Bachelor of Dental Surgery) with distinction in 2000 from the University of Jordan in Amman, Jordan.