1. College of Stomatology, Chongqing Medical University, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China;
2. Department of orthodontics, Stomatological Hospital of Chongqing Medical University, Chongqing, China;
3. Department of orthodontics, Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China;
4. Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, China