Teeth whitening lightens the natural colour of the teeth using gels applied to the tooth surface. It is a common choice for discolouration caused by coffee, tea, smoking or age. Done properly, it does not permanently damage the enamel.
Which methods are there?
- In-office whitening: After the gums are protected, a higher-concentration gel is applied in a single visit of about an hour.
- At-home whitening: A low-concentration gel is used daily at home for a set period with custom-made clear trays.
- In some cases both methods are combined.
Who is it not suitable for?
- People with untreated cavities or gum disease (these are treated first)
- Pregnant or breastfeeding women
- Children and teenagers
- People with crowns or large fillings on front teeth: fillings and crowns do not whiten, so they may need to be renewed afterwards.
Aftercare
Avoiding coloured food and drinks (coffee, tea, cola, wine, tomato-based dishes) and smoking for the first 48 hours helps protect the result. Temporary sensitivity lasting a few days is normal and usually settles with a desensitising toothpaste.
Frequently asked questions
Is whitening permanent?
Results last a long time but may darken slightly over time depending on diet and habits. Short top-up treatments can be done under supervision if needed.
Does whitening with charcoal or lemon work?
It is not recommended. Abrasive powders and acidic mixtures can wear down the enamel and may even make teeth look more yellow.