Teeth whitening trays home

Home whitening trays use peroxide gel in a fitted or flexible tray, but the concentration, fit, and your tooth condition determine the risks.

Whitening gel contains a peroxide compound that moves through enamel and dentine to break down some stain molecules. It changes natural tooth colour, but it does not bleach crowns, fillings, veneers, or bonding in the same way.

Use only the gel and wear time supplied for that tray, keep gel off the gums, and stop if sharp sensitivity or burning develops. Brush gently, avoid abrasive scrubbing, and have a clinician check any persistent sensitivity before repeating treatment.

Arrange an examination for toothache, visible holes, cracked teeth, gum bleeding, or pain from cold that lingers. Seek advice if the tray pinches the gum, whitening causes ulceration, or the result is uneven around fillings or crowns.

Ask whether your enamel, dentine, gums, and restorations are suitable for whitening, which gel strength matches your mouth, and how the tray should fit. Ask how existing restorations may look after nearby natural teeth become lighter.