1. Division of Oral Bioengineering; Institute of Medicine and Dentistry, Niigata University; Niigata Japan
2. Advanced Research Center; the Nippon Dental University School of Life Dentistry at Niigata; Niigata Japan
3. Department of Materials Science and Technology; Niigata University; Niigata Japan
4. Division of Periodontology; Institute of Medicine and Dentistry, Niigata University; Niigata Japan
5. Department of Oral and Maxillofacial Radiology; the Nippon Dental University School of Life Dentistry at Niigata; Niigata Japan
6. Institute of Research Collaboration and Promotion, Niigata University; Niigata Japan
7. Department of Mechanical and Control Engineering; Niigata Institute of Technology; Kashiwazaki Japan