1. Hunan Key Laboratory of Oral Health Research & Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, Hunan 410008, China
2. College of Biology, Hunan University, Changsha, Hunan 410082, China
3. Department of Oral and Maxillofacial Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410010, China
4. Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China