1. Department of Prosthodontics Peking University School and Hospital of Stomatology BeijingChina
2. National Engineering Laboratory for Digital and Material Technology of Stomatology Beijing China
3. Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health Beijing China
4. Beijing Key Laboratory of Digital Stomatology Beijing China
5. Department of Orthodontics Peking University School and Hospital of Stomatology Beijing China
6. Department of Pathology School & Hospital of Stomatology Shanghai Engineering Research Center of Tooth Restoration and Regeneration Tongji University Shanghai China
7. The Central Laboratory Peking University School and Hospital of Stomatology Beijing China