Big white smile teeth whitening
Peroxide whitening lightens natural enamel and dentine, but it does not change the color of fillings, crowns, or veneers.
The short answer
Teeth whitening lightens natural tooth structure by allowing a peroxide gel to break down colored molecules in enamel and dentine; it does not whiten fillings, crowns, veneers, or other restorations.
What is the direct answer?
What does this question mean?
A dental examination checks for decay, cracks, leaking restorations, gum recession, and existing sensitivity before whitening. The final shade depends on the starting color, stain type, enamel and dentine, and the method used.
What can you do next?
Have a dentist identify the stain and protect the gums before applying or prescribing a peroxide system. Reduce strong staining exposures during treatment and follow the specified wear time rather than leaving trays in longer.
When should you seek dental care?
Seek dental care before whitening if a tooth hurts, gums bleed, surfaces are eroded, or one tooth is much darker than the others. Stop and contact the provider if pain or soft-tissue irritation is significant.
What should you ask the dentist?
Ask whether the discoloration is intrinsic or surface stain, which teeth and restorations will change, how sensitivity will be managed, and whether trays or in-office application are appropriate.
Frequently asked questions
What is the main point?
A dental examination checks for decay, cracks, leaking restorations, gum recession, and existing sensitivity before whitening. The final shade depends on the starting color, stain type, enamel and dentine, and the method used.
What can I do now?
Have a dentist identify the stain and protect the gums before applying or prescribing a peroxide system. Reduce strong staining exposures during treatment and follow the specified wear time rather than leaving trays in longer.
When is care urgent?
Seek dental care before whitening if a tooth hurts, gums bleed, surfaces are eroded, or one tooth is much darker than the others. Stop and contact the provider if pain or soft-tissue irritation is significant.