SMA

Teeth Whitening

Professional-grade whitening treatments to help reduce the appearance of staining

Professional teeth whitening uses higher-concentration bleaching agents than over-the-counter products and is carried out under the supervision of a dental professional, either in the clinic or through a take-home kit dispensed by a dentist. The treatment works by using peroxide-based solutions to lighten the shade of natural tooth enamel. Results depend on the original shade of your teeth, the type of staining present, and the whitening method used. Whitening is not effective on crowns, veneers, or composite restorations, and will not change their colour. Results are not permanent and vary between individuals.

What the Process Involves

  1. 1

    Pre-treatment assessment — your dentist examines your teeth and gums to confirm suitability; whitening is not recommended if you have untreated decay, gum disease, or significant sensitivity.

  2. 2

    Shade recording — your current tooth shade is documented as a baseline for comparison after treatment.

  3. 3

    In-chair or take-home treatment — in-chair whitening involves applying a professional-strength gel to your teeth, often activated with a light or heat source, for one to several sessions; take-home kits use custom trays worn for a specified period each day.

  4. 4

    Post-treatment review — your dentist may review your results and advise on maintenance or additional treatment if needed.

  5. 5

    Ongoing maintenance — your dentist advises on avoiding foods and drinks that cause staining, and may recommend periodic top-up treatments to maintain your result over time.

Recovery

Tooth sensitivity is a common side effect of whitening, particularly during treatment and in the days immediately following. Gum irritation can also occur if the bleaching agent contacts soft tissue. These effects are generally temporary and resolve without intervention, though your dentist can recommend sensitivity relief products if needed.

Important Considerations

Whitening is not suitable for all patients — those with severe sensitivity, exposed root surfaces, or certain restorations may not be good candidates. It will not lighten existing crowns, veneers, or fillings, which may become more noticeable after treatment. Results are temporary and will fade over time, especially with consumption of staining foods and beverages. Overuse of whitening products or using excessively high concentrations can cause tooth damage. Only consult a registered dental professional for whitening advice and treatment.

Frequently Asked Questions

How long do whitening results last?
Whitening results are not permanent. The duration of results varies between individuals and is significantly influenced by diet, oral hygiene habits, and lifestyle factors such as consumption of coffee, tea, red wine, or tobacco. Many people find results begin to fade within several months to a year, after which top-up treatment may be recommended by their dentist.
Will whitening work on crowns, veneers, or fillings?
No — peroxide-based whitening agents only affect natural tooth enamel and will not change the colour of existing restorations including crowns, veneers, composite bonding, or dentures. This can result in colour inconsistency between natural teeth and restorations after whitening. Your dentist will advise on the implications for your specific situation.
Is teeth whitening safe?
Professional teeth whitening carried out under the supervision of a registered dental professional is generally considered safe when used as directed. Sensitivity and temporary gum irritation are the most common side effects. Overuse or use of inappropriately high concentrations can damage enamel and soft tissues. Always seek whitening treatment from a registered dental professional rather than unlicensed providers.

Ready to explore your options?

The best way to find out if teeth whitening is right for you is to speak with a qualified dentist in your area. They can assess your individual circumstances and provide personalised advice.