1. Department of Dental Materials & Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
2. Department of Prosthodontics, Xiangya Stomatological Hospital & School of Stomatology, Central South University, Changsha, 410078, P. R. China
3. Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
4. Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
5. First Clinical Division, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
6. Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
7. National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials & Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, P. R. China