1. Postgraduate Student, Department of Orthodontics, Graduate School of Dentistry, Kyushu University, Fukuoka, Japan
2. Assistant Professor, Department of Orthodontics, Graduate School of Dentistry, Kyushu University, Fukuoka, Japan
3. Postgraduate Student, Section of Oral & Maxillofacial Surgery, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
4. Clinical Fellow, Department of Orthodontics, Graduate School of Dentistry, Kyushu University, Fukuoka, Japan
5. Associate Professor and Head of the Chair, Department of Orthodontics, Graduate School of Dentistry, Kyushu University, Fukuoka, Japan