Crest 3d professional effects whitestrips
Whitening strips use peroxide gel to lighten some tooth stains, but results depend on the teeth, restorations, and product directions.
The short answer
Whitening strips use a peroxide-containing gel to lighten some surface and internal tooth stains, while results depend on the teeth and the product instructions.
How long should peroxide gel contact the front teeth?
Whitening strips place a peroxide gel against the front surfaces of teeth for a specified application time. The peroxide can break down stain molecules, but it does not change the colour of fillings, crowns, veneers, or bonding.
How can whitening strips be used without gum irritation?
Read the product directions, keep the gel on the teeth rather than the gums, and stop if significant irritation develops. A dental examination should check for decay, cracks, gum disease, and restorations before cosmetic whitening.
When does whitening sensitivity require dental care?
Seek care for severe or prolonged sensitivity, chemical irritation, tooth pain, or whitening of only one tooth. A darkened tooth may need diagnostic assessment rather than cosmetic treatment.
Would supervised whitening suit this discolouration better?
Ask whether the discolouration is suitable for peroxide whitening, how restorations will look afterward, and whether supervised whitening is more appropriate.
Frequently asked questions
How much can peroxide whitening strips lighten teeth?
Whitening strips use a peroxide-containing gel to lighten some surface and internal tooth stains, while results depend on the teeth and the product instructions.
What should an examination clarify?
Ask whether the discolouration is suitable for peroxide whitening, how restorations will look afterward, and whether supervised whitening is more appropriate.
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.