A brighter smile is one of the most popular cosmetic goals. Before you begin, it helps to understand how whitening works and what to expect.
How Teeth Whitening Works
Whitening uses a bleaching agent to lighten stains that build up on and within the tooth surface. Professional treatments are carried out or supervised by a dental team, who can choose the right strength and protect your gums. Home kits are also available, but the strength and method vary, so it is wise to ask your dentist what suits you.
Things to Consider First
- A check-up comes first. Whitening works best on healthy teeth and gums, so any decay or gum concerns should be treated beforehand.
- Some teeth respond differently. Fillings, crowns and veneers do not change colour with whitening, and some types of staining may lighten more than others.
- Sensitivity can happen. Some people notice temporary sensitivity during or after treatment. Let your dentist know if you have sensitive teeth.
- Results vary. The shade you achieve depends on your natural tooth colour and your starting point, so outcomes differ from person to person.
Looking After Your Results
Whitening is not permanent. Everyday habits such as drinking tea, coffee or red wine and smoking can darken teeth over time. Brushing well, visiting your hygienist and limiting staining foods and drinks can help you enjoy your results for longer.
If you are thinking about whitening, book a consultation. Your dentist can explain the options, discuss costs and help you decide what is realistic for your smile.
This article is general information and is not a substitute for professional dental advice. Please speak to your dentist about your own needs.


