Ji-yao Li, DDS, Ph.D, Professor and Chair of department of Oral medicine at West China School of Stomatology, Sichuan University. She also serves as standing committee member of Chinese Stomatological Association of Cariology and Endodontology, deputy chairman of Sichuan Stomatological Association of Cariology and Endodontology. Her major research interests includes etiology and prevention and treatment of dental caries and endodontics disease. Dr. Li has published over 60 papers and 7 books, has supervised more than 10 national and provincial level science projects. She has received six national, ministerial and provincial level scientific and technological achievements awards, including National Science and Technology Progress Award.