1. Department of Fixed Prosthodontics, Nihon University School of Dentistry
2. Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry
3. Private Scholar
4. R&D Center, Mitsui Chemicals Inc.
5. R&D Department, Sun Medical Co., Ltd.
6. Department of Dental Materials, Nihon University School of Dentistry
7. Division of Biomaterials Science, Dental Research Center, Nihon University School of Dentistry