He is presently the Professor and Vig/William Endowed Chair of the Division of Orthodontics, Ohio State University College of Dentistry in Columbus, OH. He received his dental training first at Kaohsiung Medical College, and then PhD in Bioengineering at University of Michigan and then Orthodontic Specialty from University of Minnesota. He was an Assistant Professor of Oral Biology at Minnesota Dental Research Center for Biomechanics and Biomaterials at University of Minnesota, Minneapolis US, from 1994 to 2006, and Professor in the Department of Orthodontics at University of North Carolina-Chapel Hill (UNC) from 2006 to 2020. Before leaving UNC, he served as Program Director (2013-2019) and Chairman (2017-2020) at UNC. Many of his students received awards from American Association of Orthodontists Foundation under his direct mentorship. Dr. Ko has contributed more than 170 publications to the scientific literature in biomaterial/biomechanical sciences, orthodontics, and bone biology. He has co-authored more than 10 book chapters and recently co-edited the book entitled “Machine Learning in Dentistry”. His research in bone tissue engineering and orthodontic bioengineering was funded by NIH. He maintains a faculty clinical practice at OSU.