How long do crest strips last
Crest whitening strips produce a temporary colour change by placing peroxide gel against the enamel, and the result fades as teeth accumulate new stains.
How long do Crest whitening strip results usually last?
Crest whitening strips produce a temporary colour change by placing peroxide gel against the enamel, and the result fades as teeth accumulate new stains.
What are whitening strips designed to do to teeth?
Whitening strips are flexible plastic pieces coated with a peroxide-based gel. The peroxide diffuses into enamel and dentin and breaks down some coloured molecules, while fillings, crowns, veneers, and implants do not bleach in the same way. How long the visible change remains depends on the original stains, diet, tobacco exposure, oral hygiene, enamel characteristics, and whether maintenance treatments are used. The product’s treatment schedule and storage instructions determine how it should be used.
How can you use whitening strips more safely at home?
Follow the specific package directions, keep the gel on the teeth rather than the gums, and stop if marked sensitivity or gum irritation develops. A dental examination is useful before whitening when there are cavities, cracks, gum recession, or prominent restorations.
When should persistent sensitivity after strips be assessed?
Seek dental care for pain that persists after stopping, a broken tooth, untreated decay, or gum inflammation. Whitening does not treat a dark tooth caused by pulp disease, trauma, or internal staining, which needs diagnosis.
What should you ask about whitening strips for your teeth?
Ask whether the discoloration is external or internal, whether existing restorations will mismatch, and what concentration and wear time are appropriate. Ask how to manage sensitivity and when a replacement or other treatment would be considered.
Frequently asked questions
Do whitening strips permanently whiten teeth?
No. They change the colour of natural tooth structure temporarily, and the appearance can darken again as new stains develop.
Why are my teeth sensitive after strips?
Peroxide can temporarily irritate the pulp or expose sensitive areas, especially with prolonged contact or existing enamel and gum problems.
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.