View Are Whitening Strips Bad For Your Teeth Pictures. Some foods are known to be whiteners, and strawberries, though vivid red, actually help in whitening because. He's been whitening teeth for many years with a stronger concentration of hydrogen peroxide than was used in these experiments, and he hasn't seen any red.

Whitening strips could be hurting your teeth. Dry your teeth first (we used a clean flannel), then apply the lower strip followed by the upper. You have to keep them on for an hour, but we find.

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Bleaching the teeth will make the white spot (which, as dr. Five out of five experts said no… However, these often contain a damaging substance. Researchers say they could break down the hard tissue that covers the nerves and blood vessels in your teeth.