Teeth whitening at home vs dentist

Home whitening uses lower-strength gel over a longer schedule, while dentist-supervised whitening uses clinical assessment and controlled application.

Both approaches use peroxide chemistry to oxidise some organic tooth stains. Home products may be strips or trays, while a dentist can examine enamel and gums, select a formulation, protect soft tissues, and make a fitted tray when appropriate.

Start with an examination if you have pain, cavities, gum disease, erosion, restorations, or marked sensitivity. Follow the chosen product schedule, avoid stacking methods, and understand that crowns, veneers, and fillings retain their existing shade.

See a dentist before whitening when discolouration affects one tooth, follows trauma, or comes with pain or sensitivity. Stop and seek advice for gum burns, persistent sensitivity, or an uneven result.

Ask which cause of staining is present, which method fits your mouth, how restorations will be handled, and what alternatives exist if peroxide whitening is unsuitable.