Started to work in stomatology clinic from 1980, and graduated from 1987. In the same year, he obtained a doctorate in stomatology and became the first doctor of dental caries in China. From 65438 to 0987, he was sent to the Royal Dental College in Aarhus, Denmark for further study, mainly engaged in basic and applied research on the causes and prevention of dental caries, especially in oral microecology, oral biochemistry and oral microbiology. He has presided over, participated in and completed key projects of National Natural Science Foundation 1, key scientific and technological projects of the tenth and eleventh five-year plans 1, key clinical construction projects of the Ministry of Health, and key research projects of Sichuan Province. After years of repeated experiments, the in vitro model system of multi-bacterial artificial plaque was successfully established for the first time. The research results reached the international leading level and won the second prize of scientific and technological achievements of the Ministry of Health. He has published more than 240 papers, won many excellent paper awards, participated in international academic conferences 10 and more than 20 national and provincial academic conferences, and edited and participated in monographs such as oral ecology, oral microbiology and practical endodontics 10. National invention patents 1 item and 2 national utility model patents. He has become an influential young expert in the field of stomatology in China.