Bleaching teeth. how long does it last?

i was reading up on this.


and it says it last 5-7 years?


what exactly does it mean?


*does it mean that once you reach the 5th year your teeth will still look how they did just a few weeks after the whitening but now its going to start wearing off?


*or does it mean that usually by the 5th - 7th year your teeth will be back how they were before you did that bleaching thing?

Bleaching teeth. how long does it last?
The length of time that lightening lasts depends on how it was done in the first place. What is done in a professional office it will last about 5 years. When you use the strips it will be shorter. No, they don't all of a sudden revert back. It's a slow process that actually begins the moment you stop the lightening process and begin to eat/drink. If you have custom trays, your dentist can sell you a touch up kit that is WAY cheaper [we charge $30] than having everything done all over again as long as you've kept your custom trays.

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