1. Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation Asahi University School of Dentistry Gifu Japan
2. PDI Gifu Dental Clinic Asahi University Gifu Japan
3. Department of Biofunction Research, Institute of Biomaterials and Bioengineering Tokyo Medical and Dental University Tokyo Japan
4. Restorative Dental Sciences, Faculty of Dentistry The University of Hong Kong, Prince Philip Dental Hospital Hong Kong SAR China