How does tooth whitening work?
In-chair tooth whitening contains an agent that penetrates the layer underneath the enamel to break down discolouration, leaving your teeth whiter.
How white can my teeth get with tooth whitening?
The results differ from person to person. Speak with your dentist if you’re wanting a specific look in a certain amount of time.
Do I need to do anything before having my teeth whitened?
Your dentist will let you know, although it’s recommended you brush your teeth before your visit and be up-to-date with your scale and clean.
Will tooth whitening lighten veneers or other restorations?
Tooth whitening can remove stains from dental restorations but will not change the original shade of the fitting.
What are the risks of tooth whitening?
While dentists take precautions, whitening agents can result in chemical burns, sensitivity and other problems. Speak to your dentist for concerns.
Do whitening toothpastes and mouthwashes work?
Store-bought whitening products tend to only remove some of the extrinsic (surface) stains, and not the stubborn layer under the enamel.
Why do teeth change colour?
Anything from colour pigments in food and drink, tabacco and medication to age and injuries can change the colour of your teeth.
What is the main ingredient in tooth whitening products dentists use?
The whitening ingredient in teeth whitening agents used at dental surgeries is either carbamide peroxide or hydrogen peroxide.
When should you avoid tooth whitening?
Always speak to your dentist first, however, pregnant women, children and people with weakened oral health are generally advised to avoid tooth whitening.
Does tooth whitening at a dentist hurt?
It shouldn’t. Some people may experience tingling or sensitivity but most dentists can apply a gel or product if this is a concern.