Water fluoridation effective at reducing caries

This Cochrane review identified 155 studies with 107 contributing to the quantitative analysis. There was a 35% reduction in dmft and a 26% reduction in DMFT. There was an approximately 15% increase in the percentage of caries-free children after water fluoridation. At a fluoride level of 0.7 ppm, the percentage of participants with fluorosis of aesthetic concern was approximately 12%.