Health & Beauty

Mary Ferry

Frequently asked questions on teeth whitening


THERE are many methods to whiten teeth: bleaching pen, bleaching gel, laser bleaching, and natural bleaching.

How does the laser teeth whitening work?
The peroxide penetrates the pores of the enamel and oxidizes the stain deposits; over a period of time, the dentin layer, lying underneath the enamel, is also bleached. Power bleaching with our laser light uses light energy to accelerate the process of bleaching in the clinic.

How long will the effect of teeth bleaching last?
The effects of bleaching can last for several months, but may vary depending on the lifestyle of the patient. Factors that decrease whitening include smoking and the ingestion of dark coloured liquids like coffee, tea and red wine.


What considerations are there before booking an appointment?
For best results it is recommended to have a proper scale and polish treatment by your dentist/hygienist prior to having your teeth whitened.

How long does a treatment take?
20 minutes

How many teeth whitening treatments will I need?
This varies from client to client, some may need just one treatment yet others will need three to five treatments depending on how discoloured the teeth are..

How quick will I see results?
Results are seen immediately afterwards.

What can I do to prolong my results?
For thirty minutes after treatment avoid the consumption of any food types that contain strong colouring such as curry, beetroot and black currant. Avoid the use any tobacco products and do not consume any drinks with dark colouring such as red wine, beer, port or coloured carbonated soft drinks (cola etc.), tea and coffee.

Will teeth bleaching damage the enamel on my teeth?
Studies show that even over long term exposure, the amount of reduction in tooth enamel is insignificant with teeth bleaching.

What are the side effects of laser teeth bleaching?
The side effects that occur most often are a temporary increase in tooth sensitivity and mild irritation of the soft tissues of the mouth, particularly the gums. Tooth sensitivity often occurs during early stages of the bleaching treatment. Tissue irritation most commonly results from an ill-fitting mouthpiece tray rather than the tooth-bleaching agent. Both of these conditions usually are temporary and disappear within 1 to 3 days of stopping or completing treatment.
Individuals with sensitive teeth and gums, receding gums and/or defective restorations should consult with their dentist prior to using a tooth whitening system. People who are sensitive to hydrogen peroxide (the whitening agent) should not try a bleaching product without first consulting a dentist.


Are there any age restrictions for having teeth whitening done?
Bleaching is not recommended in children under the age of 16. This is because the pulp chamber, or nerve of the tooth, is enlarged until this age. Tooth whitening under this condition could irritate the pulp or cause it to become sensitive.

Is teeth whitening suitable for Pregnant or lactating women?
Tooth whitening is not recommended in pregnant or lactating women.

Will my fillings change colour?
Tooth whitening does not usually change the colour of fillings and other restorative materials. It does not affect porcelain, other ceramics, or dental gold. However, it can slightly affect restorations made with composite materials, cements and dental amalgams (silver fillings). Tooth whitening can restore colour of fillings, porcelain, and other ceramics when they become stained by foods, drinks, and smoking, among other activities.