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International Oral Health Lab
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A dental public health lab that views oral health in connection with society and communities.

AboutAbout the lab
Thinking about oral health from the perspective of society
The lab studies how individual health, including oral health, is strongly related to the community people live in and their socioeconomic conditions.
Working together with local governments and other bodies, it aims to build a better society.
It investigates how trust in people and society and social bonds (social capital) affect oral health, and it also works on long-term care prevention and community-based integrated care.
The lab also trains people for international cooperation, including in developing countries.
Key terms
- Social capital
- Social capital: trust in people and society, and the connections (bonds) between people. It is a concept that expresses the strength of a community or society.
- Cohort
- Cohort: a research method that follows the same group of people over a long period to examine the relationship between living conditions and changes in health.
- Community-based integrated care
- Community-based integrated care: a system that allows people to receive medical care, long-term care, welfare, and other services together within the community where they are used to living.
- Dental caries
- Dental caries (tooth decay): a disease in which teeth are dissolved by acid produced by bacteria.
ResearchResearch themes
The lab clarifies how individual health, including oral health, is related to the community people live in and their socioeconomic conditions, and works with local governments and other bodies toward a better society. Its work ranges from research on the effects of social capital to building long-term care prevention programs, making proposals needed for community-based integrated care, and training people for international cooperation.
*Illustrative imageThe relationship between society and oral health
The lab investigates how trust in people and society and social bonds (social capital) affect oral health. Using large cohorts in Japan, it has shown that socioeconomic conditions affect the number of remaining teeth, and that the number of remaining teeth is related to needing long-term care and to death from pneumonia.
*Illustrative imageBuilding long-term care prevention programs
In response to population aging, the lab is building a long-term care prevention program that combines three components: improving nutrition, improving motor function, and improving oral function. The program is being introduced across Japan.
*Illustrative imageSpreading oral care and community-based integrated care
The lab promotes oral care in long-term care settings and makes the proposals needed to build a community-based integrated care system that can provide everything from medical care to long-term care and welfare. It also works on dental public health problems such as preventing dental caries in children, an area where countermeasures have lagged.
*Illustrative imageInternational comparison and training of personnel
The lab trains people for international cooperation, including in developing countries. By comparing Japan with other countries, it analyzes the state of dental health and health inequalities within Japan, and deepens understanding of dental care systems, long-term care insurance systems, and dental public health.
MembersFaculty
- ProfessorKen Osaka
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Toothpaste and toothbrush” James Moore200 / CC BY-SA 4.0 (cropped)
- The relationship between society and oral health: “Large gathering of Maasai women during community session in Kajiado County” Mark Myles Mugambi / CC BY-SA 4.0 (cropped)
- Building long-term care prevention programs: “Senior woman exercises with dumbbells on mat in living room” Shixart1985 / CC BY 2.0 (cropped)
- Spreading oral care and community-based integrated care: “Toothbrushes for Children - 03” Poulpy / CC BY-SA 3.0 (cropped)
- International comparison and training of personnel: “Stethoscope and globe on light blue background ( )” Jernej Furman from Slovenia / CC BY 2.0 (cropped)
- Related lab (口腔病理学分野): “Hooke Microscope-03000276-FIG-4” 作者不詳 / Public domain (cropped)
- Related lab (データサイエンス分野): “Data Science” Максим Пе / CC BY-SA 4.0 (cropped)
- Related lab (口腔生化学分野): “Lab technitian looking through the microscope while adjusting coarse knob” Shixart1985 / CC BY 2.0 (cropped)
- Related lab (歯科法医情報学分野): “Forensics Lab” Mbrickn / CC BY 4.0 (cropped)
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