Corresponding Author

State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China

Correspondence

Dr Haiyang Yu, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, 14 Renmin South Road, 3rd section, Chengdu, Sichuan 610041, China,

Email: yhyang6812@scu.edu.cn