01/07/2026
Healthy teeth may be doing far more than helping people smile and chew.
A recent study found that the number of healthy natural teeth a person has may be closely linked to how long they live. Researchers reported that counting both the number and condition of teeth provided a better picture of lifespan risk than simply recording tooth loss alone. People who retained more healthy or properly treated teeth generally showed a lower risk of premature death.
Scientists believe this connection reflects the role oral health plays throughout the body. Healthy teeth help maintain proper nutrition by allowing people to eat a wider variety of foods, while untreated decay, infections, and tooth loss can contribute to chronic inflammation. Long-term oral inflammation has been associated with conditions such as cardiovascular disease, diabetes, and other age-related health problems.
The findings suggest that the mouth may serve as an important window into overall health, and that preserving natural teeth could be associated with healthier aging and improved longevity.
📄 Source:
DOI: 10.1186/s12903-025-07275-6