1. Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University
2. Oral & Maxillofacial Implant Center, Nagasaki University Hospital
3. Division of Bioprosthodontics, Niigata University Graduate School of Medical and Dental Sciences
4. Niigata University, Medical and Dental Hospital
5. Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University