Louisiana is one vote away from banning fluoride in public water. Dentists warn it could lead to more cavities, especially in kids.

Florida Surgeon General Dr. Joseph Ladapo became the nation's first top state health official to publicly oppose fluoride in water. Since then, more than a dozen other Florida communities have ended fluoridation. Supporters of the ban say it should be about personal choice, The Post reported.

The CDC says fluoridation is among the 10 greatest public health achievements of the 20th century. Utah recently became the first state to ban it.