Study: Fluoride Good for Teeth, But Over-Exposure May Damage Enamel

Fluoride helps prevent tooth day — but too much of it can actually negatively affect oral hygiene, a new analysis has suggested.

In findings published Tuesday in Science Signaling, researchers have expanded their understanding of how a condition called fluorosis develops.

Fluorosis, or over-exposure to fluoride in childhood, can result in damage to tooth enamel, the coating that protects teeth from chemicals in food and drinks that cause decay and, ultimately, cavities.

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