Fluoride is a naturally occurring compound that is present in rocks, soil, water, and in varying amounts in almost all foods. Fluoride is also used in many consumer dental products such as toothpaste and mouth rinses. Often called “nature’s way to prevent tooth decay,” fluoride works topically and systemically. Applied topically, it strengthens teeth and makes them resistant to decay. Ingested through food and water, fluoride helps developing teeth emerge with a stronger, more decayresistant outer layer.
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