Dr. Hany S. EiD, BDS. MDS, DDSc. Associate professor and Head Department of Orthodontics, Dental College, University of MUST, EGYPT. Dr. Eid has started his orthodontic career as an active member of American Orth. Society in 1994. He is an active member of the International and American Assoc. for Dental Research and has presented and published many cited research works, served as a contributory author in reputed national and international journals including PubMed/Medline indexed journals and co-authored many papers presented in specialty conferences. He is the founder and owner of a private practice, a leading-edge orthodontic practice in the Cairo Egypt area. A certified orthodontic specialist since 1995, attained his master degree in Orthodontics from Cairo University in 1997 and Doctorate degree in 2007 from Ain Shams University. He has over 15 years of experience with craniofacial severe malocclusion cases and has conducted several Clear Aligner therapy courses & workshops in many countries worldwide.