1. Department of Orthodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, China.
2. Chongqing Key Laboratory of Oral Disease and Biomedical Sciences, and Stomatological Hospital of Chongqing Medical University, Chongqing, China.
3. Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing, China.