Institution: | 1. Department of Endodontics, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan;2. Department of Pulp Biology and Endodontics, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Kanagawa, Japan;3. Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan |