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Frequently Asked Questions on Teeth Whitening


How long does teeth whitening last?

How long you can maintain your whitened teeth will depend on several unique and individual factors. However most people find that after successful whitening, teeth rarely return to their once deeply stained state.

  • If your discoloration is due to over-consumption of tea, coffee, wine or tobacco products etc. - and you do not change your behavior, then it is likely that the whitening effect will not last as long. Additionally, teeth may require touch-ups from time to time
  • In case your teeth are genetically stained or the stains are caused by serious illness, you may need a teeth whitening treatment every few years. Normally, teeth whitening administered or prescribed by your dentist can last from 5 to 7 years.

Here at, we think that a better question is, "how long will MY teeth stay whiter?" because like so many things, it’s an answer that depends almost entirely on you.

First consideration: How are your teeth? If your dentist says you're a good candidate for whitening, you can expect your whitening to last for the maximum amount of time for the method you choose. But, if you have tetracycline stains or other genetic issues, you can only use a few whitening treatments and the duration of the results will vary. Do you take care of your teeth? Good oral hygiene goes a long way in ensuring that whatever whitening treatments you use last the maximum amount of time.

Second consideration: How are you whitening your teeth? Results from professional-level teeth whitening kits (strips, mouth trays) from the drug or discount store may last up to two years if you've followed the directions carefully–and followed up with products designed to keep teeth white. If you're using a whitening toothpaste, you'll have to keep using it–whitening toothpaste only works to clean teeth, it doesn’t actually bleach them.

On the other hand, if you're a good candidate for teeth whitening and you choose a treatment method from your dentist (in-office whitening or custom-take home trays), you can expect your whitening (again, with proper follow-up) to last up to 5 years.

If a long-lasting result is your goal, make your decisions carefully and involve your dentist. It’s the best way to guarantee that you make the right choices for your budget, your health and your smile.


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