How to make your teeth whiter without damaging them

Whitening is gentler when a dentist checks the enamel, gums, fillings, and cause of staining before choosing peroxide treatment.

Dental whitening uses peroxide to break down some stain molecules within enamel and dentine. It cannot whiten crowns, fillings, or veneers, and untreated decay, cracks, or gum inflammation can make treatment uncomfortable.

Have visible deposits professionally cleaned first, then use a dentist-selected tray or in-office method as directed. Reduce frequent staining drinks, rinse with water afterward, and stop the product if marked sensitivity or gum irritation develops.

Seek an examination before whitening if a tooth hurts, has a cavity, is cracked, or has a dark single-tooth colour change. Arrange review for persistent sensitivity, gum burns, or whitening that produces uneven colour.

Ask what is causing the discoloration, whether your restorations will match afterward, and which peroxide concentration and wear time fit your enamel and gums. Ask how sensitivity will be managed and when results should be reassessed.