1. Department of Oral and Maxillofacial Surgery, College of Stomatology, Ninth People's Hospital, School of Dental Medicine, Shanghai Jiao Tong University, Shanghai, China.
2. Department of Orthodontics, College of Stomatology, Ninth People's Hospital, School of Dental Medicine, Shanghai Jiao Tong University, Shanghai, China.
3. Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, China.
4. Department of Prosthodontics, College of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
5. Shanghai Research Institute of Stomatology, Shanghai Key Laboratory of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.