1. Department of Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan;
2. Department of Orthodontics and Craniofacial Developmental Biology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan;
3. Faculty of Odonto-Stomatology, Ho Chi Minh City University of Medicine and Pharmacy, Ho Chi Minh, Vietnam;
4. Department of Community Dentistry, Chitwan Medical College & Hospital, Tribhuvan University, Bharatpur, Nepal;
5. Nanomedicine Research Division, Research Institute for Nanodevice and Bio Systems, Hiroshima University, Higashi-Hiroshima, Japan