Community Social DentistryPreventive Dentistry

Oral health means not only being free of oral diseases but also being able to perform proper oral functions. Basic oral functions such as eating, speaking and laughing are essential for fully expressing oneself and achieving self-realization. Preventive dentistry aims to help people lead a full-fledged life by keeping their oral conditions healthy and optimal so that they can maintain a wholesome life style throughout life.

The typical image of preventive dentistry has been that of preventing dental caries and periodontal diseases. From the overall perspective of systemic health, however, this only represents a fraction of the means of health promotion. Preventive dentistry integrates with the primary prevention (to be healthy and to prevent initial sickness), the secondary prevention (to prevent illness from getting worse) and the tertiary prevention (to recover and restore the original functions). Thus the philosophy of preventive dentistry is required for everyone who engages in oral health care and treatment.

The division of preventive dentistry investigates oral health and healthcare issues from the standpoint of individuals and communities as a whole.


Topics of Research

  • Prevention and treatment of cancer therapy-induced oral adverse events/oral mucositis
  • Patient survey of consciousness on perioperative oral management and care
  • Research on protective devices in tongue brachytherapy
  • Association of breath and oral environment with bone metastases and skeletal related events of breast cancer
  • Impact of COVID-19 on oral cavity
  • Study of diagnosis and prevention of early caries of enamel and root surfaces
  • Development of evaluation methods and recording systems of dental clinical skills

Recent Publications

  1. Tanda, N., Tada, H., Washio, J., Takahashi, N., Ishida, T., Koseki, T.: Influence of alcohol sensitivity on bone metastases and skeletal-related events in primary operable breast cancer: A retrospective cohort study. PLOS ONE 17: e026933, 2022. (doi: 10.1371/journal.pone.0269335)
  2. Tanda N, Washio J, Kamei T, Akazawa K, Takahashi N, Koseki T(2019)
    Professional Oral Care Reduces Carcinogenic Acetaldehyde Levels in Mouth Air of Perioperative Esophageal Cancer Patients: A Prospective Comparative Study
    Tohoku J Exp Med. 2019 Sep;249(1):75-83. doi: 10.1620/tjem.249.75. 
  3. Dodo M, Kitamura H, Shima H, Saigusa D, Wati SM, Ota N, Katsuoka F, Chiba H, Okae H, Arima T, Igarashi K, Koseki T, Sekine H, Motohashi H.(2019)
    Lactate dehydrogenase C is required for the protein expression of a sperm-specific isoform of lactate dehydrogenase A
    J Biochem. 2019 Apr 1;165(4):323-334.doi: 10.1093/jb/mvy108.
  4. Tanda N, Hoshikawa Y, Sato T, Takahashi N, Koseki T(2019)
    Exhaled acetone and isoprene in perioperative lung cancer patients under intensive oral care: possible indicators of inflammatory responses and metabolic changes
    Biomedical Research. 40 (2019) 29-36
  5. Dodo M, Kumagai M, Kato Y, Hirakawa H and Koseki T(2017)
    Metastasis in the mandibular condyle: a case report.
    Journal of Medical Case Report. 2017, 11:323,
  6. Tanda N, Hoshikawa Y, Ishida N, Sato T, Takahashi N, HosokawaR, Koseki T(2015)
    Oral malodorous gases and oral microbiota: From halitosis to carcinogenesis
    Journal of OralBiosciences/2015; 57: 175–178

Laboratory Contacts