The US experience with fluoridation.

This paper reviews the progress of the campaign for community water fluoridation in the United States, the current extent and impact of fluoridation, and lessons learned from the endeavour. Deliberate addition of fluoride to community water supplies to prevent dental caries began in 1945. At present, 62 per cent of the US population who could receive fluoridated water are doing so. A target has been set to achieve 75 per cent by the year 2000 and this target has already been achieved by 20 states and the District of Columbia. However, to achieve the objective nationally, at least an additional 30 million persons will have to receive fluoridated water. This will require considerable effort, including substantial public education and advocacy, as vigorous opposition to fluoridation continues to exist in the US. Lessons learned from the US experience include: 1) Fluoridation of community water supplies dramatically reduces the incidence and prevalence of dental caries. 2) The benefits of fluoridation for exceed the risks. 3) The benefits of fluoridation should be brought to more people around the world.