Periodontitis and incident cognitive decline and dementia: A 15-year prospective cohort study of older men residing in Northern Ireland

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DOI: 10.1177/13872877251401563

© The Author(s) 2025

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The study concerns 642 older men in Northern Ireland and cannot establish effects in all populations. Periodontitis was not significantly associated with later dementia or mild cognitive impairment. Tooth retention and inflammatory-marker associations do not prove that dental interventions prevent dementia.

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Verification date: 2026-10-22

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