Do whitening strips damage enamel?

Check first: whiten only on a clean bill - cavities, cracks, and exposed roots change the answer.
Follow the box: wear time and cycle length are the safety margin.
Pause on sensitivity: it is temporary - stop, switch to a sensitivity toothpaste, restart slower.
Get seen if: one tooth darkens on its own or whitening brings sharp pain - a single dark tooth is a nerve question, not a stain.

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Used as directed, peroxide strips do not permanently damage enamel - but they are the one over-the-counter product that actually bleaches teeth, so they deserve respect. A review of over-the-counter whitening products found strips are the only OTC option that promotes real bleaching (toothpastes and charcoal merely remove surface stains), and the most common adverse effects are temporary tooth sensitivity and gum inflammation - both from peroxide reaching the nerve and soft tissue, both resolving when you stop. The damage risk comes from misuse: overlong wear, too-frequent cycles, or bleaching over cavities, cracks, or exposed roots - indiscriminate use can harm tooth and gum tissue. The smart order: a dental check first (whitening over a cavity hurts and fails), strips as directed on the box, and a pause if sensitivity shows up. And know the limit: strips lift surface and age staining; they do nothing for crowns, fillings, or tetracycline staining.

Do whitening strips damage enamel?

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