1. Division of Oral Bioengineering, Institute of Medicine and Dentistry, Niigata University, Niigata, Japan;
2. Division of Periodontology, Institute of Medicine and Dentistry, Niigata University, Niigata, Japan;
3. Division of Oral and Maxillofacial Surgery, Institute of Medicine and Dentistry, Niigata University, Niigata, Japan;
4. Department of Oral and Maxillofacial Radiology, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan;
5. Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata, Japan