1. Department of Dentofacial Orthopedics, Graduate School of Dentistry, Ohu University, 31-1, Misumido, Tomitamachi, Koriyama-City 963-8611, Fukushima, Japan
2. Division of Orthodontics and Dentofacial Orthopedics, Department of Oral Growth and Development, School of Dentistry, Ohu University, 31-1, Misumido, Tomitamachi, Koriyama-City 963-8611, Fukushima, Japan
3. Department of Plastic and Reconstructive Surgery, Fukushima Medical University, 1, Hikarigaoka, Fukushima-City 960-1295, Fukushima, Japan