Crest 3d white strips before after
Whitening strips can lighten some natural tooth stains, but the result depends on the starting shade, stain type, fit, and use instructions.
The short answer
Whitening strips are plastic films coated with peroxide gel that contact the front surfaces of natural teeth.
What is the direct answer?
What does this question mean?
Peroxide breaks down stain molecules, while fillings, crowns, veneers, and bonding retain their original shade.
What can you do next?
Follow the label, keep gel off the gums, and stop if marked sensitivity or chemical irritation develops.
When should you seek dental care?
See a dentist before whitening with cavities, cracks, gum recession, inflammation, or visible restorations.
What should you ask the dentist?
Ask whether the colour is surface or internal and whether restorations will match afterward.
Frequently asked questions
What should I do first?
Follow the label, keep gel off the gums, and stop if marked sensitivity or chemical irritation develops.
When is examination needed?
See a dentist before whitening with cavities, cracks, gum recession, inflammation, or visible restorations.