Qingyu Guo, female, professor, director of the Children's Dental Department of Xi'an Jiaotong University Stemmatological Hospital. She engaged in the mechanism of dental caries, plaque biofilm formation and dental pulp regeneration clinical and tissue engineering research, but also engaged in clinical research of children's oral diseases. She is good at the diagnosis and treatment of dental pulp disease and dental disease in children, and has unique research on the diagnosis and treatment of difficult diseases. Up to now, she has hosted 8 research funds of various types, including 4 scientific and technological projects in Shaanxi Province, 2 science and technology projects in Shaanxi Provincial Health Department, 1 scientific and technological project in Xi'an, and 1 Guanghua Fund in Xi'an Jiaotong University. She has won the third prize of the Ministry of Health and Shaanxi Province for scientific and technological progress, and published more than 30 papers.