![]() National Institutes of Health Go to source X Trustworthy Source PubMed Central Journal archive from the U.S. National Institutes of Health Go to source Buy an over-the-counter gel tray or have your dentist prescribe one. ![]() There is some evidence that gel-filled trays with a 3% hydrogen peroxide gel can significantly whiten teeth. X Trustworthy Source American Dental Association World's largest dental professional organization and advocate for proper oral health Go to source Look for the American Dental Association’s Seal of Acceptance to minimize the risk of using an unsafe product.Consider using another peroxide product in addition to a toothpaste to get deeper stains and have better results.Recognize that toothpastes only remove surface stains from activities like drinking or smoking. ![]() It can take four to six weeks to notice results.
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