Professionally whiten teeth

Professional tooth whitening uses a peroxide gel selected after an examination to lighten natural tooth structure while protecting the gums.

A dental professional first checks for decay, cracked enamel, gum disease, exposed roots, and restorations. Whitening gel acts on stain molecules in enamel and dentine, but it does not change the colour of fillings, crowns, or veneers.

The appointment may include photographs or shade assessment, gum isolation, measured gel application, and instructions for any take-home trays. Treat active disease first, and use desensitizing advice or shorter applications when sensitivity develops.

Seek an examination before whitening if you have tooth pain, untreated cavities, gum bleeding, worn enamel, or unexplained darkening of one tooth. Stop a whitening product and contact the practice if it causes marked irritation or persistent sensitivity.

Ask which stains can respond and whether any restorations will remain visible. Ask which peroxide product and application time are planned, how sensitivity will be managed, and when results should be reassessed.