Best dental bleach

The appropriate whitening method depends on stain type, enamel, gum health, restorations, and the peroxide product selected.

Whitening uses peroxide to break down molecules within natural enamel and dentine. It cannot bleach fillings, crowns, veneers, or bonding, and brown, grey, medication-related, or internal tooth colour may need a different approach.

Have plaque, calculus, decay, leaking fillings, gum inflammation, and exposed roots checked before whitening. Use only a product with clear instructions, keep gel off the gums, and stop if burning or significant sensitivity develops.

Seek an examination for one dark tooth, pain, trauma, decay, gum recession, or restorations that do not match the surrounding teeth. Swelling, fever, or a broken tooth needs prompt care rather than cosmetic treatment.

Ask which stains can respond to peroxide, whether a cleaning is needed first, and how existing restorations will look afterward. Ask about tray fit, gel ingredients, sensitivity control, and alternatives such as replacing a visible restoration.