1. Division of Advanced Prosthetic Dentistry, Graduate School of Dentistry, Tohoku University
2. Liaison Center for Innovative Dentistry, Graduate School of Dentistry, Tohoku University
3. Dental Materials Laboratory, National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology
4. Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Nagasaki University