1. Department of Periodontology, Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
2. Department of Nanomedicine, Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
3. Dental and Oral Surgery, Secomedic Hospital; Chiba Japan
4. Research Center for Medical and Dental Science, Tokyo Medical and Dental University; Tokyo Japan
5. Tanaka Dental Clinic; Tokyo Japan
6. Department of Periodontology and Oral Medicine; Institute of Dentistry; Banja Luka Bosnia and Herzegovina
7. Department of Periodontology and Oral Medicine; Medical faculty University of Banja Luka, 78000 Banjaluka; Republic of Srpska Bosnia and Herzegovina