Fluoride is a naturally occurring mineral, released from rocks into the soil, water and air. It's commonly used in dentistry to strengthen tooth enamel and prevent cavities. In many parts of the world, including Canada, public health authorities or local ...

The CDC calls the practice of adding fluoride to tap water systems one of the 10 greatest public health achievements of the last century.

RFK Jr. calls for removal of fluoride in drinking water, while Nebraska Dental association President Jessica Meeske says removal would increase tooth decay in Nebraska.