1. Jiangsu Key Laboratory of Oral DiseasesNanjing Medical University Nanjing P. R. China
2. Yixing People's Hospital Yixing P. R. China
3. Beijing Engineering Research Center of Orthopaedic ImplantsFirst Affiliated Hospital of CPLA General Hospital Beijing P. R. China
4. Affiliated Stomatology Hospital of Soochow University Suzhou P. R. China
5. Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical EngineeringSoutheast University Nanjing P. R. China
6. Suzhou Institute & Collaborative Innovation Center of Suzhou Nano Science and TechnologySoutheast University Suzhou P. R. China
7. Department of Advanced Oral Sciences & TherapeuticsUniversity of Maryland School of Dentistry Baltimore MD USA
8. Center for Stem Cell Biology & Regenerative MedicineUniversity of Maryland School of Medicine Baltimore MD USA
9. Department of Mechanical EngineeringUniversity of Maryland Baltimore County Baltimore County MD USA