1. Department of Chemistry, College of Arts and Sciences, Showa University, 4562 Kamiyoshida, Fujiyoshida-shi, Yamanashi 403-0005, Japan, Quantum Chemistry Division, Graduate School of Science, Yokohama-city University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan, Department of Oral Biomaterials and Technology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan, Department of Cariology and Endodontology, Showa University School of Dentistry, 2-1-1 Kitasenzoku,...