1. Department of Prosthodontics Peking University School and Hospital of Stomatology; National Clinical Research Center for Oral Diseases; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology Beijing China
2. Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices Chongqing University of Science and Technology Chongqing China
3. First Clinical Division School and Hospital of Stomatology Peking University Beijing China