Teeth Whitening: Overview
Quick answer
Professional teeth whitening uses whitening gels to lighten the natural colour of teeth, either in the clinic, at home with custom trays, or both. Results vary from person to person and depend on the type of staining. Whitening does not change the colour of fillings, crowns or veneers.
How professional whitening works
Whitening gels break down stain molecules within the tooth, lightening its natural colour. Professional products are applied in a controlled way, with your gums protected, after a check that your teeth are healthy.
In-clinic or at home
Some people prefer a supervised in-clinic session; others use custom-fitted trays at home over a period of time, or a combination of both. Your dentist will recommend an approach based on your teeth and the result you are hoping for.
Teeth Whitening: Who may consider it
- General yellowing or staining from food, drinks or age
- A brighter smile without changing the shape of your teeth
- Lightening teeth before new restorations are colour-matched
Suitability is always confirmed at a consultation.
Teeth Whitening: The consultation process
Consultation & discussion
Share what you'd like to change. We talk through your goals, concerns and questions.
Dental assessment
Your teeth, gums and bite are examined. Photos or scans may be taken where helpful.
Personalised treatment plan
You receive clear options, what each involves and what to consider, so you can decide with confidence.
Treatment & follow-up
Treatment proceeds at an agreed pace, with reviews and aftercare guidance along the way.
Teeth Whitening: Things to consider
- Temporary sensitivity is common during and shortly after whitening
- Fillings, crowns and veneers will not change colour
- Results gradually fade and may need occasional top-ups
- Whitening may not be suitable during pregnancy, or with untreated decay or gum problems
Teeth Whitening: Frequently asked questions
Does whitening hurt?
Whitening is not usually painful, but temporary sensitivity is common. Your dentist can suggest ways to reduce it.
How long do the results last?
It varies. Results fade gradually depending on diet, habits such as smoking, and oral hygiene. Occasional top-ups may be recommended.
Is whitening safe for enamel?
Professional whitening, used as directed after a dental check, is generally considered safe for healthy teeth. It is not suitable for everyone, which is why an assessment comes first.
