1. Division of Bio-Prosthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University
2. Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima University
3. Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo
4. Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry