1. Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry, Sendai, Japan.
2. Division of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan.
3. Department of Biochemistry, Showa University School of Dentistry, Tokyo, Japan.
4. Division of Clinical Cell Therapy, Department of Translational Research, Center for Translational and Advanced Animal Research, Tohoku University School of Medicine, Sendai, Japan.
5. Department of Nanomechanics, Center for Micro/Nano Design and Processing Engineering, Tohoku University, Sendai, Japan.