Care after teeth whitening can help the result last longer. The information below is general in nature.
Nutrition in the first days
In the period following whitening it may be advisable to limit foods and drinks that can cause staining:
- Dark-coloured drinks (coffee, tea, cola)
- Colouring foods
- The negative effect of smoking
Oral care
Regular brushing and flossing support overall oral health and help maintain the result.
Managing sensitivity
If there is temporary sensitivity, the approaches the dentist recommends can be followed. If it persists, contact the dentist.
Frequently asked questions
How long should I be careful?
Being careful with staining foods for the time the dentist recommends can be helpful.
Can whitening be repeated?
If needed over time, it can be reassessed under the dentist’s supervision.
Do crowned teeth whiten?
Whitening is effective on natural teeth; the colours of crowns/fillings are addressed differently.
The first 48 hours
In the days after whitening the tooth surface can be more susceptible to staining. Coffee, tea, cola, red wine, concentrated fruit juices, tomato-based sauces and dark condiments are usually avoided during this period. Limiting smoking at this stage also helps protect the result.
- Choosing water over dark-coloured drinks
- Temporarily avoiding staining foods
- Rinsing with water after eating
- Brushing gently with a soft brush
Managing sensitivity
Temporary sensitivity to hot and cold is common and usually settles within a short time. Desensitising toothpaste or gels recommended by your dentist can help. If symptoms last more than a few days, a review is advisable.
Keeping the result
The shade achieved can change over time depending on diet and oral hygiene. Regular brushing, interdental cleaning and periodic professional cleaning all help maintain appearance. Whether a top-up is needed is decided together at a review appointment.
Frequently asked questions
Can I brush straight after whitening?
Yes, normal oral hygiene should continue, using a soft brush and avoiding abrasive products.
Why do my crowns look different now?
Restorations do not change shade with whitening, so a difference can appear. Replacing them may be discussed if the mismatch is noticeable.
For the methods themselves read teeth whitening methods and safety, and see our teeth whitening and smile design pages. Further reading: World Health Organization oral health resources.
This article is for general information only and does not replace an examination, diagnosis or treatment by a dentist.