1. Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
2. Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
3. Liaison Center for Innovative Dentistry, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
4. Department of Applied Chemistry, Graduate School of Engineering Kyushu University, Fukuoka 819-0395, Japan
5. Tohoku Orthopedic Hospital, Sendai 981-3121, Japan