Water fluoridation is considered one of the greatest public health innovations of all time. Fluoride in drinking water offers protection against cavities which is one of the most common chronic diseases in youth today. It is extremely safe and cost-effective. With the right amount of fluoride in community water systems, cavities can be prevented in a community regardless of age, income or education. Communities that have fluoridated water tend to have fewer cavities than communities that do not have a significant amount of fluoride in the water. Nearly all public health, medical and dental organizations recommend water fluoridation. There are often numerous questions and concerns surrounding water fluoridation.