1. Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China
2. National Clinical Research Center for Oral Diseases, Beijing 100081, China
3. National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing 100081, China
4. Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China