1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure
2. Shanghai Institute of Ceramics
3. Chinese Academy of Sciences
4. Shanghai 200050
5. China
6. Center of Craniofacial Orthodontics
7. Department of Oral and Cranio-maxillofacial Science
8. Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
9. School of Medicine
10. Shanghai 200011