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kelly c 發問時間: 社會與文化語言 · 1 0 年前

I have question for chemistry

why is it important to use a toothpaste containing fluoride?

Tooth enamel consists of the "insoluble" material hydroxyagpatite. Explain briefly, using chemical principles, why acidic food cause tooth decay if you don't brush your teeth.

1 個解答

  • yi
    Lv 6
    1 0 年前

    The purpose of oral hygiene is to prevent the build-up of plaque, the sticky film of bacteria and food that forms on the teeth. Plaque adheres to the crevices and fissures of the teeth and generates acids that, when not removed on a regular basis, slowly eat away, or decay, the protective enamel surface of the teeth, causing holes (cavities) to form. Plaque also irritates .

    Fluoride kills the bacteria found in plaque and strengthens enamel. Added in toothpastes, mouth rinses and topical gels, fluoride is also found naturally in drinking water.

    參考資料: yen, dictionary
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