Background The benefits of community water fluoridation were first observed in the early 1900's when a Colorado dentist noted that some of his patients had less tooth decay than others who lived in other locations. These benefits were formally linked to fluoride in the 1930's through observational studies. In 1945, Grand Rapids, Michigan became the first city to actively fluoridate its public water supply, joining an independent community trial to assess the effects of fluoride-enhanced water systems and the prevention of tooth decay. Fluoride is nature's protection for teeth. It prevents decay by making them harder.
All water contains some fluoride.
Water from more than 75 water systems in Kansas contains natural fluoridation levels ranging from 0.7 to 0.9 parts per million, enough to prevent caries. Find out where your drinking water comes from. This information should be displayed in your monthly water bill. DO NOT search by city or town as some municipalities purchase their water from other sources. When this is the case, an average test value is included.