挑选牙膏需要注意什么_BEC初级作文

挑选牙膏需要注意什么

细菌不断地破坏你的牙齿，所以牙齿会不断地试图回到最佳状态。（我们的唾液本身含钙，可辅助这一过程。）这一过程也被称为再矿化，会在氟化物的帮助下进行。所有盖着美国牙科协会印章的牙膏必须含氟化物。

Some brands now are using hydroxyapatite instead. Research shows that hydroxyapatite may be as good as fluoride for remineralizing teeth, but the science isn't yet solid enough for most dentists to recommend it. If you have a specific reason why you need to avoid fluoride, ask your dentist about hydroxyapatite; but for now, most of us should probably stick with fluoride toothpastes.

现在，有些牙膏品牌正使用羟基磷灰石替代氟化物。研究表明，在牙齿再矿化方面，羟基磷灰石或起到与氟化物一样的作用，但研究尚不足以让大多数牙医推荐羟基磷灰石。如果你因为特殊原因不能使用氟化物，可询问牙医是否可以使用羟基磷灰石；但目前为止，大多数人仍使用含氟牙膏。

Ingredients for texture and flavor

关于牙膏质地和味道的成分

Everything else is just there to make the toothpaste easy to use. Humectants help the substance to keep a gel-like texture; foaming agents make it bubble up as you brush. Toothpastes that are missing these ingredients can still do a fine job of cleaning your teeth. (I use a toothpaste with no foaming agents and prefer it.)