Two cities stopped adding fluoride to water. Science reveals what happened

Calgary, Canada, and Juneau, Alaska, show how ending fluoridation can affect health

A child in sunglasses has dental tools inserted in mouth by practitioner wearing blue gloves.

In cities that have stopped adding fluoride to drinking water, children experience more tooth decay, studies have shown.

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Warren Loeppky has been a pediatric dentist in the Canadian city of Calgary for 20 years.