1. Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin 300000, China
2. State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
3. Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
4. The School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, China
5. Department of Stomatology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China