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give me a moment and I will find the study. I wrote the article about 4 years ago. ha my bad.

well water sometimes has naturally occurring fluoride in at as well. There are plenty of nations around the world who do not have fluoride in the water and do fine. Also, the idea is that fluoride only works when applied topically. so how does drinking it via water help? It has effects beyond the teeth, as many studies have pointed out.

oh and the study was linked in the second paragraph ha http://onlinelibrary.wiley.com/doi/10.1002/14651858.CD010856.pub2/abstract

"here is insufficient evidence to determine whether water fluoridation results in a change in disparities in caries levels across SES. We did not identify any evidence, meeting the review's inclusion criteria, to determine the effectiveness of water fluoridation for preventing caries in adults.

There is insufficient information to determine the effect on caries levels of stopping water fluoridation programmes.

There is a significant association between dental fluorosis (of aesthetic concern or all levels of dental fluorosis) and fluoride level. The evidence is limited due to high risk of bias within the studies and substantial between-study variation."

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