Dr. Johnny Liaw completed his orthodontic training at National Taiwan University Hospital in 1994 and received his master degree in Chang Gung University. He is now in private practice since 2002 after 8 year visiting staff in Shin Kong Memorial Hospital. He keeps on part-time teaching at National Taiwan University. He served as the President of Taiwan Association of Orthodontists during 2013 & 2014, and Chair of Taiwan Board of Orthodontics during 2015 & 2016. His main interest is the pursuit of Orthodontic excellence through interdisciplinary treatment and the use of TADs. He enjoys speaking nationally and international l y to share the experience and seek the next level on Orthodontic excellence.