1. Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, and Stomatological Hospital of Chongqing Medical University, Chongqing, China.
2. Department of Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, China.
3. Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.
4. Laboratory Animal Ceter, Southwest University, Chongqing, China.