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How long do whitening effects last?

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Teeth whitening is not permanent. People who expose their teeth to foods and beverages that cause staining may see the whiteness start to fade in as little as one month. Those who avoid foods and beverages that stain may be able to wait one year or longer before another whitening treatment or touch-up is needed.

The degree of whiteness will vary from individual to individual depending on the condition of the teeth, the level of staining, and the type of bleaching system used.

SOURCES:
Massachusetts Dental Society.
Gerlach, R.W. Compendium of Continuing Education in Dentistry, December 2005.
Listerine Whitening FAQ.
CVS.
Amazon.com.

Reviewed by Michael Friedman on October 9, 2019

SOURCES:
Massachusetts Dental Society.
Gerlach, R.W. Compendium of Continuing Education in Dentistry, December 2005.
Listerine Whitening FAQ.
CVS.
Amazon.com.

Reviewed by Michael Friedman on October 9, 2019

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How does the strength of bleaching agents used to whiten teeth vary?

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