Whitening strips crest professional
Whitening strips use peroxide gel on the enamel surface; results and sensitivity depend on stain type, concentration, fit, and tooth health.
The short answer
Whitening strips are flexible plastic carriers coated with peroxide gel that can lighten some surface and internal tooth staining when used as directed. They do not change the colour of fillings, crowns, veneers, or other tooth-coloured restorations.
Are professional-branded strips the same as dentist whitening?
A professional-branded strip is still an over-the-counter bleaching product, not the same as dentist-supervised whitening. The gel must contact natural enamel, while gaps, decay, gum recession, cracks, and restorations can make colour uneven or sensitivity more likely.
How should you follow the instructions for whitening strips?
Read the active ingredient and follow the stated wear time and course; do not cut, sleep in, or layer strips unless the instructions allow it. Keep gel off the gums, stop if marked pain or tissue whitening occurs, and have untreated dental problems checked first.
When should a dentist assess you before whitening?
Seek dental advice before whitening if you have cavities, cracked teeth, gum disease, significant sensitivity, pregnancy, or extensive restorations. Contact a dentist for persistent sensitivity, gum burns, or a colour mismatch after treatment.
Can whitening produce an even result for your stains?
Ask whether the stains are extrinsic or inside the tooth and whether whitening can produce an even result. Ask how existing fillings or crowns will appear afterward and which supervised option matches your enamel and gums.
Frequently asked questions
Will strips whiten fillings?
No. They may lighten nearby enamel while the restoration keeps its existing shade.
Can I use strips on sensitive teeth?
Sensitivity should be assessed first, because peroxide can intensify an existing problem.
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.