Tooth loss linked to higher risk of cognitive decline in older adults

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  A review of 14 studies published in the journal JAMDA found that older adults who had lost more than one tooth had nearly a 50% higher risk of cognitive decline.

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  The review also found that this group was 28% more likely to receive a dementia diagnosis.

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  The authors said the findings show an association, not proof that tooth loss directly causes cognitive decline or dementia.

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  Other factors may contribute, including prolonged inflammation, diet, access to dental care and existing illnesses.

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  Harvard Health Publishing recommends regular dental checkups, including an examination and cleaning every six months, and brushing at least twice a day.

Who

Older adults and the authors of a review of 14 studies

What

A review found an association between losing more than one tooth and higher risks of cognitive decline and dementia

When

The article was published on October 10, 2026; the review's date is not stated

Where

Not stated

Why

The findings highlight a possible link between tooth loss and cognitive health and the importance of dental care; they do not establish that tooth loss causes cognitive decline.

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