![]() ![]() You should also be cautious of using multiple whitening products at once, since this can disrupt the enamel and cause more sensitivity. If you do start to notice any sensitivity, she recommends then switching to a desensitizing toothpaste with one of these active ingredients-potassium nitrate, stannous fluoride, or strontium chloride to help with the sensitivity. "The majority of whitening toothpastes state they have been tested and are safe to use twice a day for two minutes," says. When using a whitening toothpaste, you pretty much use it like you would any other paste. To combat this, opt for toothpastes with a low abrasion level or with lower concentrations of ingredients, like peroxide. If you lose enamel, your teeth in turn will appear more yellow. ![]() "These ingredients can lead to enamel-wear, which can cause sensitivity and affect overall aesthetics due to their abrasive nature," Khan says. There is a downside to these ingredients, though, Khan says. "It restores mineral density and therefore makes teeth appear whiter and less translucent." Fluoride can help control cavities and strengthen your tooth enamel. "Hydroxyapatite is another ingredient that helps remineralize your teeth and remove extrinsic staining," says Khan. Next, you should look for ingredients, like fluoride and hydroxyapatite. You can also ask your dentist what they carry at their office if you're looking for suggestions, says Tabaraie. "When choosing whitening toothpaste go with one with the ADA seal because it has been tested for safety and efficacy," says Khan. First things first, check for an American Dental Association seal (ADA).
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