1. Division of Orthodontics and Dentofacial Orthopedics; Department of Oral Growth and Development; School of Dentistry; Health Sciences University of Hokkaido; Ishikari-Tobetsu Japan
2. Division of Biomaterials and Bioengineering; Department of Oral Rehabilitation; School of Dentistry; Health Sciences University of Hokkaido; Ishikari-Tobetsu Japan