Crest pro white strips
Whitening strips use peroxide on the front surfaces of teeth, and results depend on fit, stain type, restorations, and sensitivity.
The short answer
Whitening strips use peroxide on the front surfaces of teeth, and results depend on fit, stain type, restorations, and sensitivity. They should be applied only as directed, with the strip kept on the tooth surfaces rather than the gums.
What are whitening strips and what can they change?
A strip is a thin flexible carrier coated with whitening gel, commonly based on hydrogen peroxide or a peroxide-releasing compound. The gel diffuses into enamel and dentine and breaks down some coloured molecules; it does not bleach fillings, crowns, or veneers.
How should you apply whitening strips safely?
Read the product directions, place the strip so it covers the intended teeth, and remove it if the gums burn or become pale and sore. A dental check is useful before use when you have cavities, gum recession, cracks, braces, or visible restorations.
When do whitening strip symptoms need urgent care?
Stop and seek dental advice for strong sensitivity, persistent gum pain, ulcers, uneven colour, or pain in one tooth. Facial swelling or difficulty swallowing or breathing requires urgent care.
What should you ask before using strips on your teeth?
Ask whether your stains are suitable for strips, whether decay or recession needs treatment first, and how the strips may affect sensitivity. Ask how to match existing restorations and what alternative whitening method would fit your teeth.
Frequently asked questions
Can whitening strips damage gums?
Gel left against the gingiva can irritate it, so follow the directions and stop if burning or soreness develops.
Can I use strips with dental fillings?
A dentist can check whether the natural teeth will change shade differently from the fillings and plan a matching option.
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.