1. Division of Clinical Biomaterials, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University
2. Japan Society for Adhesive Dentistry
3. Department of Removal Prosthodontics, Tsurumi University School of Dental Medicine
4. Tsubota Dental Clinic
5. Department of Dental Materials, Nihon University School of Dentistry
6. Department of Adhesive Dentistry, Nippon Dental University
7. Department of Operative Dentistry, Nihon University School of Dentistry