Dr Sandra Khong Tai received her training in Orthodontics at the University of Minnesota, USA. She is a practicing Specialist in Vancouver, Canada and Clinical Assistant Professor at the University of British Columbia. She is also Adjunct Assistant Professor at the University of the Pacific in San Francisco. Dr Tai is a Diplomat of the American Board of Orthodontics and was Invisalign certified since 2000. She is currently an Invisalign Diamond Plus Provider who has treated over 3,000 cases. Dr Tai is the author of the textbook “Clear Aligner Technique”. (Quintessence Publishing 2018) available in 11 languages. She has authored a chapter on Clear Aligner Treatment in the 7th edition of Graber’s Orthodontics (Elsevier 2021). She is a reviewer for the American Journal of Orthodontics and Dentofacial Orthopedics, as well as on the Editorial Board of the Journal of Aligner Orthodontics.