Corresponding Author

Department of Orthodontics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan

Department of Orthodontics, Okayama University Hospital, Okayama, Japan

Correspondence Satoru Hayano and Noriaki Kawanabe, Department of Orthodontics, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8525, Japan.

Email: shayano@okayama-u.ac.jp and kawanabe@md.okayama-u.ac.jp