
Teeth Whitening
Professional in-office whitening lightens the natural color of your teeth using a peroxide-based gel applied by a dental professional. A light or laser is often used to activate the gel, and your gums are protected throughout. It works best on yellowing caused by age, food, drinks and smoking, and results are visible in a single session.
- Visits
- Usually 1
- Treatment time
- About 1–2 hours
- Longevity
- Often 1–3 years, varies
Who it suits.
- Yellowing from coffee, tea, red wine or smoking
- Teeth that have darkened with age
- Anyone wanting a brighter smile before an event
- Healthy teeth and gums without untreated decay
What it brings.
Fast results
A noticeable change can be seen after one appointment.
Professionally supervised
A dental professional controls the strength of the gel and protects your gums.
Non-invasive
No drilling or tooth reduction is involved.
Brighter confidence
A lighter shade can refresh your whole smile.
Step by step.
- 01
Check-up
Your dentist checks that your teeth and gums are healthy and records your starting shade.
- 02
Protecting the gums
A barrier gel or shield is placed over the gums, and your lips and cheeks are kept away from the teeth.
- 03
Whitening gel and light
The whitening gel is applied to the teeth and often activated with a light, usually in several short rounds.
- 04
Finish and review
The gel is removed, the new shade is compared with the starting one, and a desensitising product may be applied.
Looking after it.
- For the first 48 hours, avoid dark or strongly colored foods and drinks such as coffee, tea, red wine and curry
- Avoid smoking, which quickly re-stains teeth
- Use a toothpaste for sensitive teeth if you notice sensitivity
- Brush twice daily and keep up regular hygiene visits to keep results longer
Good to know.
Is whitening painful?
The procedure itself is not usually painful. Temporary sensitivity to cold or mild gum irritation is common for a day or two afterwards and normally fades without treatment.
How long do the results last?
Results vary from person to person and often last from around one to three years. Diet, smoking and hygiene all play a part, and occasional touch-ups can help.
Will whitening work on crowns, veneers or fillings?
No. Whitening only changes the color of natural teeth, so existing crowns, veneers, fillings and dentures stay the same shade. They may need replacing afterwards if you want them to match.
Is whitening suitable for everyone?
Not always. It is generally not recommended for under-18s or during pregnancy or breastfeeding, and any decay or gum problems should be treated first. Your dentist will check whether it suits you before starting.

















