1. School & Hospital of Stomatology
2. Tongji University
3. Shanghai Engineering Research Center of Tooth Restoration and Regeneration
4. Shanghai 200072
5. China
6. Department of Spine Surgery
7. Tongji Hospital
8. Tongji University School of Medicine
9. Shanghai 200065
10. Shanghai Institute of Ceramics
11. Chinese Academy of Sciences
12. Shanghai 200050