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Tooth Loss Linked to Cognitive Decline
11 Mar
Summary
- Losing one tooth increases cognitive decline risk by 1.7%.
- Tooth loss may be an early marker for cognitive impairment.
- Gum infections can enter the bloodstream, potentially affecting the brain.

A growing body of research suggests a significant connection between tooth loss and a decline in cognitive function. Studies involving over 35,000 participants in the U.S. found that each lost tooth was associated with a 1.7% increase in the risk of cognitive decline. This correlation suggests that significant tooth loss could substantially raise the likelihood of developing dementia.
Experts explain that tooth loss can affect cognitive health on multiple levels. It is considered a potential early indicator of cognitive impairment in older adults. Research from Harvard University indicated that individuals experiencing greater tooth loss faced a notably higher risk of cognitive impairment and dementia.