1. Sharanbir K Sidhu, BDS, MSc, PhD, FICD, MFDSRCS, FADM, clinical lecturer, Restorative Dentistry, School of Dental Sciences, University of Newcastle, Newcastle upon Tyne, UK
2. Takatsumi Ikeda, DDS, PhD, assistant professor, Department of Restorative Dentistry, Division of Oral Health Science, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
3. Yo Omata, DDS, PhD student, Department of Restorative Dentistry, Division of Oral Health Science, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
4. Megumi Fujita, DDS, PhD student, Department of Restorative Dentistry, Division of Oral Health Science, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
5. Hidehiko Sano, DDS, PhD, professor, Department of Restorative Dentistry, Division of Oral Health Science, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan