*Masumi Abe1, Rui Nouchi2, Toru Ogawa1, Naru Shiraishi1, Hiroki Hihara1, Tsuguyoshi Toyooka3, Chiaki Doi3, Satoshi Hiyama3, Keiichi Sasaki4, Hiroshi Egusa5, Nobuhiro Yoda1
(1. Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, 2. Cognitive Health Science Lab, School of Psychological Sciences, University Human Environments, 3. NTT DOCOMO,INC. X-Tech Development Department, 4. Tohoku University Graduate School of Dentistry, 5. Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry)