Community water fluoridation

Community water fluoridation has been studied in 1 paper since 2026: 1 observational study in people; 1 in the past year. The newest story, Nov 5, 2026: “Water fluoride not linked to cognition in older Irish adults”.

Exposure

1 paper studies it1 findingUpdated Nov 4, 2026

1 new paper in 30 daysSee all 1 papers on community water fluoridation

At a glance

The findings reach people, from one lab or study. 1 lab in 1 country.

“CLEFW showed no association with cognitive errors”

Lifetime Fluoride Exposure and Cognition in Older Irish AdultsJournal of dental research2026doi:10.1177/00220345261490925

1 lab in 1 country

Funder: Health Research Board

Humans1

What did studies of community water fluoridation find?

Studies of community water fluoridation measured 1 outcome; the most studied are cognitive errors (1 study).

Cognitive errors

no changein humans1

1 study

Community water fluoridation was not clearly linked with cognitive errors in humans (multivariable-adjusted analysis) (MMSE IRR 1.00 (95% CI 0.99–1.01); MoCA IRR 1.00 (95% CI 1.00–1.01)).
“CLEFW showed no association with cognitive errors”
Humansmultivariable-adjusted analysiscumulative lifetime exposure to fluoridated water, continuous≥50 yn = 2,495
Water fluoride not linked to cognition in older Irish adults
Journal of dental researchNov 4, 2026

Latest

1 paper in 12 months

Journal of Dental ResearchNov 5

Water fluoride not linked to cognition in older Irish adults

Estimated lifetime exposure was not associated with errors on either thinking test, with an error-rate ratio of 1.00—indicating no association—for each.Estimated lifetime exposure was not associated with errors on either thinking test, with an error-rate ratio of 1.00—indicating no association—for each.

Cross-sectional · 2,495 peoplePopulations

Paper