Tooth truth: Fluoride's protective powers proven often across decades

Fluorides occur naturally in the earth’s crust, where they are found in rocks, coal, clay, and soil. Lately, though, fluoride is found mostly in the news.

What is the science, not the politics, behind community water fluoridation?

The tipping point between beneficial and harmful hinges, as with many things, on the amount.

Read a guest column by Dr. Claire Hemphill, an alumna of the PFW College of Science and a member of its Community Advisory Council, in The Journal Gazette (subscription required).