What is the direct answer?
Hydrogen peroxide can oxidise some stains, but unmeasured household use may irritate gums and oral lining and is not a controlled whitening plan.
What does this question mean?
Whitening depends on peroxide formulation, concentration, pH, contact time, and tooth condition. Peroxide does not recolour fillings, crowns, veneers, or other restorations.
What can you do next?
Do not swallow or repeatedly paint peroxide on teeth. Have decay, cracks, exposed dentine, gum inflammation, and restorations checked before using a measured product as directed.
When should you seek dental care?
Stop and seek advice for burning, peeling or white gums, marked sensitivity, swelling, or pain.
What should you ask the dentist?
Ask what type of stain is present, which formulation fits, and how existing restorations and sensitivity will be managed.
Frequently asked questions
Can this have more than one cause?
Whitening depends on peroxide formulation, concentration, pH, contact time, and tooth condition. Peroxide does not recolour fillings, crowns, veneers, or other restorations.
What should I do while arranging care?
Do not swallow or repeatedly paint peroxide on teeth. Have decay, cracks, exposed dentine, gum inflammation, and restorations checked before using a measured product as directed.

