Treatments

Teeth Whitening

10 October 2026
In brief

Professional teeth whitening can lighten the colour of natural teeth after a dentist has checked that the teeth and gums are suitable for treatment.

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  1. 01Assessment before whitening
  2. 02Treatment options
  3. 03Possible side effects and alternatives
  4. 04Maintaining the result

Whitening uses peroxide-based products to lighten certain types of staining. The response varies with the cause and depth of discolouration. Crowns, veneers, fillings, dentures and implant restorations do not whiten, so their colour must be considered before treatment.

Assessment before whitening

The dentist assesses the teeth, gums, existing restorations, sensitivity and the possible cause of discolouration. Decay, cracks, leaking fillings or gum problems may need attention first. Whitening is not appropriate for every person or every type of stain.

Treatment options

Options may include dentist-supervised home whitening with custom trays or an in-clinic protocol. Product strength, application time and review schedule are selected for the individual. Follow the prescribed instructions and do not exceed the recommended use.

Possible side effects and alternatives

Temporary tooth sensitivity and gum irritation are common possible effects. Uneven colour can occur, especially when restorations are present. Alternatives may include professional cleaning, bonding, veneers, crowns or accepting the existing shade, depending on the cause of the colour change.

Maintaining the result

Whitening is not permanent. Drinks, foods, tobacco and natural ageing can affect colour over time. Your dentist can advise on oral hygiene, stain reduction and whether supervised top-up treatment is suitable.

Individual assessment

A starting point for a conversation with a qualified dentist. Every treatment begins with an individual assessment.

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