1 Department of Endodontics, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, 464-8651, Japan.
2 Department of Integrative Education of Pharmacy, School of Pharmacy, Aichi Gakuin University, Nagoya, Aichi, 464-8650, Japan. Electronic address: makio@dpc.agu.ac.jp.