Why Do Teeth Get Stained, and Can It Be Removed?
Tea, coffee, tobacco, medicines and ageing all change tooth colour. Learn which stains polish off and which need whitening or cosmetic care.
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The short answer
Professional teeth whitening lightens the natural shade of your teeth and lifts stains caused by tea, coffee, tobacco and ageing. Done under dental supervision after a check-up and cleaning, it is a safe and predictable way to brighten your smile, with the dentist matching the approach to your teeth and sensitivity.
- What it is
- Dentist-supervised lightening of tooth shade
- Best for
- Healthy teeth with surface or age-related staining
- Typical visits
- Usually one to two, depending on the method
When should you consider teeth whitening?
- Yellowing with age
- Stains from tea, coffee, tobacco or certain foods
- Teeth that look dull after braces
- An upcoming event or occasion
- Wanting a brighter smile without reshaping teeth
If you recognise any of these, a short examination is the best way to find out what is happening and what, if anything, you need.
What happens, step by step
- 1
Check-up
We confirm your teeth and gums are healthy enough to whiten and treat any cavities first.
- 2
Cleaning
A professional clean removes surface deposits so the whitening works evenly.
- 3
Shade and protection
Your starting shade is recorded and gums are protected from the whitening agent.
- 4
Whitening
The whitening agent is applied for the planned time, with comfort checks throughout.
- 5
Aftercare
You are advised on diet, sensitivity and maintaining the result.
Benefits
- Visibly brighter teeth without removing tooth structure
- Supervised care reduces the risk of gum irritation
- Quick, non-surgical and comfortable for most patients
- Can be topped up later if needed
Aftercare and tips
- Temporary sensitivity is common and usually settles within a day or two
- For the first couple of days avoid strongly coloured foods and drinks such as tea, coffee, red wine and curry
- Avoid smoking and tobacco, which re-stain teeth quickly
- Keep up regular cleaning to maintain the result
Teeth Whitening: frequently asked questions
Is teeth whitening safe?
When performed under dental supervision on healthy teeth, whitening is considered safe. Temporary sensitivity or gum irritation can occur, and the dentist takes steps to minimise it.
Does whitening work on crowns and fillings?
No. Whitening only changes natural tooth structure. If you have visible crowns or fillings, the dentist will plan so that the final shade is matched.
How long do whitening results last?
Results vary from person to person and depend on diet, tobacco use and oral hygiene. Avoiding staining habits helps results last longer.
Can everyone have their teeth whitened?
Not always. Cavities, gum disease, very sensitive teeth and pregnancy are examples where whitening may be postponed. A short examination will confirm whether it is right for you.
This page is general information, not personal medical advice. Whether this treatment is right for you is decided after a clinical examination by your dentist.
