1. Department of Restorative Dentistry, Faculty of Dental Medicine, Hokkaido University
2. Department of Dental Materials, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Disease
3. Department of Conservative Dentistry and Endodontics, Sapporo Dental College and Hospital
4. Department of Operative Dentistry, Field of Study of Biofunctional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
5. Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
6. Section for Clinical Education, Faculty of Dental Medicine, Hokkaido University
7. Division of Biomaterials, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia
8. Department of Biomaterials and Bioengineering, Faculty of Dental Medicine, Hokkaido University