Dr Sandra Khong Tai received her graduate training in Orthodontics at the University of Minnesota. She is a practicing Specialist in Orthodontics in Vancouver, Canada, and a Clinical Assistant Professor in Orthodontics at the University of British Columbia, as well as an Adjunct Clinical Assistant Professor at the University of the Pacific. Dr Sandra Tai is a Diplomat of the American Board of Orthodontics. She has been an Invisalign certified orthodontist since 2000 and is currently an Invisalign Diamond Plus Provider who has treated over 3,000 cases with Invisalign clear aligners. Dr Tai is the author of the textbook “Clear Aligner Technique”. (Quintessence Publishing 2018) which has been translated into 11 languages. She has authored a chapter on Clear Aligner Treatment in the 7th edition of Graber’s Orthodontics (Elsevier 2021). She is a member of the Editorial Board of the Journal of Aligner Orthodontics and a reviewer for the American Journal of Orthodontics and Dentofacial Orthopedics, Journal of Orthodontics & Craniofacial Research, and APOS Trends in Orthodontics. She is one of the pioneer testing doctors on Invisalign with Mandibular Advancement and Invisalign First appliance and is involved in several research projects on clear aligners.