1. Division of Orthodontics and Dentofacial Orthopedics, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido
2. Division of Biomaterials and Bioengineering, Department of Oral Rehabilitation, School of Dentistry, Health Sciences University of Hokkaido
3. Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University