Zhihe Zhao, D.D.S., Ph.D., Professor & Doctoral Supervisor. Associate Dean of West China School of Stomatology Sichuan University, Former President of Chinese Orthodontic Society (COS), Vice President of Stomatologist Branch of Chinese Medical Doctor Association(CMDA), Committee Member of Chinese Stomatological Association（CSA）, Member of World Federation Orthodontists (WFO), Fellow of International College of Dentists （ICD）. Associate Editor-in-Chief of Chinese Journal of Orthodontics and International Journal of Stomatology, Editorial Board Member of Chinese Journal of Stomatology, West China Journal of Stomatology ,etc. Principal Investigator of 8 projects of National Natural Science Foundation of China (NSFC) including one Key Project. Published more than 230 papers, including 110 papers indexed by SCI. Editor-in-chief of 9 professional books including the textbook ’Orthodontics’ for undergraduate students planed by the Ministry of Health of China, Won totally the 2 First Prizes including the 'Education Ministry Science and Technology Progress Award' and the 'Sichuan Province Science and Technology Progress Award', and won the 2 Second Prizes at ministerial and provincial-level. More than 30 years in orthodontic clinic and been good at orthodontic treatment of difficult cases in children and adults.