1. Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology & National Center 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 & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing 100081, PR China
2. State Key Laboratory of Organic–Inorganic Composites & Beijing Laboratory of Biomedical Materials & Beijing University of Chemical Technology, Beijing 100029, PR China
3. Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, PR China
4. The Key Laboratory of Bioactive Materials, Ministry of Education & College of Life Science, Nankai University, Tianjin 300071, PR China
5. Department of Orthodontics, Peking University School and Hospital of Stomatology & National Center 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 & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing 100081, PR China