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How do whitening toothpastes work?

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All toothpastes help remove surface stains, because they contain mild abrasives. Some whitening toothpastes have gentle polishing or chemical agents that better remove stains. Whitening toothpastes don’t have bleach and can lighten your tooth color by about one shade. Over-the-counter products and professional whitening procedures use carbamide peroxide or hydrogen peroxide that helps lighten the color deep in the tooth – between three to eight shades lighter.

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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