*Roxana Stegaroiu1, Koichi Kurokawa1, Yoshiaki Arai2, Yuta Yamazaki2, Shigeo Tanaka3
(1. Niigata University Graduate School of Medical and Dental Sciences, Department of Oral Health and Welfare, 2. Niigata University Medical and Dental Hospital, Oral Implant Clinic, 3. Kanazawa University Institute of Science and Engineering, Bioengineering Laboratory)