About the Authors

Kenji Takeuchi

t.kenji64@gmail.com

Affiliation Department of International and Community Oral Health, Tohoku University Graduate School of Dentistry, Miyagi, Japan

Jun Aida

Affiliation Department of International and Community Oral Health, Tohoku University Graduate School of Dentistry, Miyagi, Japan

Katsunori Kondo

Affiliation Center for Well-being and Society, Nihon Fukushi University, Aichi, Japan

Ken Osaka

Affiliation Department of International and Community Oral Health, Tohoku University Graduate School of Dentistry, Miyagi, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KT JA KK KO. Performed the experiments: KT KO. Analyzed the data: KT JA. Contributed reagents/materials/analysis tools: KT JA KO. Wrote the paper: KT JA KK.