There are three essential ways of addressing discoloration in your tooth structure.

解決牙齒結構變色問題有三種基本方法。

First, you can buy an over the counter tooth whitening toothpaste that you can find in the grocery store.

首先，你可以在雜貨店購買非處方的牙齒美白牙膏。

Be careful though because those tooth-whitening toothpastes really just contain abrasives that simply remove surface stains that might be caused by coffee, red wine, dark therapy sodas, black tea.

不過要小心，因為這些牙齒美白牙膏實際上只含有研磨劑，只能去除咖啡、紅酒、深色蘇打水、紅茶可能造成的表面汙漬，

In order to change the intrinsic color of the tooth structure, what you really need to do is use a whitening material that contains some formulation of peroxide.

以改變牙齒結構的固有顏色，你真正需要做的是使用含有某種過氧化物配方的美白材料。

First, you can do an in-office procedure.

首先，您可以在診室內進行手術。

You go into your dentist's office, usually one visit is all that it takes, and your dentist applies a whitening gel to your teeth.

您到牙醫診所就診，通常只需一次，然後牙醫會在您的牙齒上塗抹美白凝膠，

And after several cycles of applying and removing this whitening material, the intrinsic color of your tooth structure will often become whiter.

經過幾個週期的塗抹和去除這種美白材料後，您牙齒結構的固有顏色通常會變得更白。

The other method that can be used is a take-home method where trays are made to fit your teeth.

另一種方法是帶回家的方法，即製作適合您牙齒的托盤。

You can also use whitening strips that aren't custom made to fit your teeth and you apply the material to the trays and wear the trays.

您也可以使用非定製的美白牙貼，將材料塗在牙託上，然後戴上牙託。

What's important is to remember that unless your teeth are in fact healthy, how white they are really doesn't matter.

重要的是要記住，除非你的牙齒真的很健康，否則牙齒有多白並不重要。

It's important to see your dentist before you consider tooth whitening.

在考慮牙齒美白之前，一定要去看牙醫。

And if you're considering tooth whitening, because if you have dark teeth, cavities, crowns, large fillings in the front surfaces of your teeth, tooth whitening may not be effective for you.

如果你正在考慮牙齒美白，因為如果你有黑牙齲齒、牙冠大的補牙在你的牙齒前表面，牙齒美白可能對你無效。