1. Department of Prosthodontics, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
2. National Clinical Research Center for Oral Diseases, 639 Zhizaoju Road, Shanghai 200011, China
3. Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
4. The State Key Laboratory of Bioreactor Engineering, 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 200237, China