Studies have shown that using fluoride toothpaste helps increase the concentration of fluoride in the teeth, even in areas with water supplies containing high levels of the mineral.

研究表明使用含氟牙膏能够增加你牙齿中的含氟量，甚至达到某些地区用水中加入高浓度氟的水平。

youdao

Everyone should brush with a fluoride toothpaste every day.

每个人需要每天用含氟牙膏。

youdao

Whenever you eat sweets -- in anymeal or snack -- brush your teeth well with a fluoride toothpaste afterward.

建议每当你吃完甜食后都要用含氟的牙膏把牙刷干净。

youdao

That's achieved by brushing twice a day with fluoride toothpaste.

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