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。
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Using fluoride toothpaste is an important way to ensure that your teeth are reaping the benefits of this dental-friendly mineral.
使用含氟牙膏是一种能够确保你牙齿能够得到这种利牙矿物质好处的重要途径。
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These acids cause the mineral crystals inside the teeth to begin to dissolve.