Archive · 14 Jan 2026
Teeth Condition Predicts Lifespan, Study Finds
A big study in Japan looked at the teeth of over 190,000 older adults.
They found that having healthy or filled teeth can help you live longer.
People with more missing or decayed teeth were more likely to die earlier.
This might be because bad teeth can cause problems in your body and make it hard to eat good food.
The study shows that taking care of your teeth is really important for your health.
Study analyzed dental records of over 190,000 adults aged 75 and above.
Healthy and filled teeth linked to lower mortality risk.
People with more missing or decayed teeth more likely to die earlier.
Total number of healthy and filled teeth better predictor of mortality than natural teeth count.
Poor oral health may reflect wider healthcare access and socioeconomic issues.
- Who
- Researchers from the University of Osaka
- What
- Studied the link between oral health and lifespan
- When
- Published in the journal BMC Oral Health
- Where
- Japan
- Why
- To understand how oral health affects overall mortality
- Study Participants
- More than 190,000 adults aged 75 and above
- Teeth Classification
- Healthy, filled, decayed, or missing
- Key Finding
- Healthy and filled teeth linked to lower mortality risk
- Journal
- BMC Oral Health
- Potential Link to Early Death
- Chronic inflammation and poor nutrition