Utah has become the first state to ban fluoride in public drinking water, pushing past opposition from dentists and national health organizations who warn the move will lead to medical problems that disproportionately affect low-income communities.

Utah has become the first U.S. state to outlaw the addition of fluoride to public drinking water.

Utah has banned fluoride in public drinking water, making it the first in the country to do so. Here's why dentists think that's a bad idea.