Crest pro strips
Whitening strips use peroxide gel to lighten some surface and internal tooth stains, but results depend on the cause and tooth condition.
The short answer
Whitening strips use a peroxide gel to lighten some surface and internal tooth stains, but they cannot change the colour of fillings, crowns, or veneers.
What is the direct answer?
What does this question mean?
These are flexible plastic strips coated with a peroxide whitening gel. The gel oxidises some colour molecules within enamel and dentine, while uneven contact can leave patchy colour or irritate gums.
What can you do next?
Use the product only as its label directs, keep the gel off the gums, and stop if marked sensitivity or soft-tissue irritation develops. A dental examination is useful before whitening when teeth are painful, damaged, or heavily restored.
When should you seek dental care?
See a dentist before using strips for untreated decay, cracks, gum disease, severe sensitivity, or a single dark tooth. Seek prompt care for swelling, spontaneous pain, or pain that persists after the strip is removed.
What should you ask the dentist?
Ask whether the discolouration is on the surface or inside the tooth, whether peroxide whitening is suitable, and how existing restorations will affect the final shade.
Frequently asked questions
Can strips whiten one filling?
No. They lighten natural tooth structure, so a restoration may need colour matching after whitening.
Why are my teeth uneven after strips?
Uneven contact, different enamel thickness, or mixed natural and restored surfaces can produce uneven colour.