1. Section of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry Kyushu University Fukuoka Japan
2. Section of Orthodontics and Dentofacial Orthopedics, Faculty of Dental Science Kyushu University Fukuoka Japan
3. Radiology Center, Fukuoka Dental College Hospital Fukuoka Japan
4. Department of Oral Diagnosis Tohoku University Graduate School of Dentistry Sendai Japan
5. Graduate School of Information Sciences Hiroshima City University Hiroshima Japan
6. Section of Image Diagnosis, Department of Diagnostics and General Care Fukuoka Dental College Fukuoka Japan