They sure do

Fluoridated beverage linked to childhood dental fluorosisBy International & American Association for Dental ResearchMar 9, 2006, 21:41 Editor's note: Fluoride is added to public water systems to prevent dental cavities, but new research shows the fluoridated water can cause a worse dental disease known as fluorosis. Fluoridation of drinking water is a highly controversial issue. The growing body of evidence suggests that added fluoride may attribute to childhood dental problems while dentists diligently promote fluoridation
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