In short
Professional teeth whitening uses a whitening agent, applied under a dentist's guidance, to lighten stains on natural teeth. Results vary, and some people have temporary sensitivity. Your dentist will check that your teeth and gums are healthy before you start.
How does professional whitening work?
Whitening products use a bleaching agent that lightens the colour of stains inside and on the surface of your teeth. A dentist can choose the strength and method that suit your teeth and gums, and protect your gums during treatment.
What causes teeth to stain or darken?
Common causes include coffee, tea, red wine, tobacco, some medicines and the natural effects of age. Some stains are deeper and respond differently to whitening.
Who may benefit?
Whitening works on natural teeth. It does not change the colour of crowns, veneers, bonding or fillings, so these may need to be matched or replaced afterward. If you have gum disease, cavities or worn enamel, your dentist may recommend treating those first.
What are the treatment steps?
- Exam. Your dentist checks your teeth and gums and discusses your goals.
- Preparing for whitening. Your dentist may recommend a cleaning first.
- Applying the whitening agent. The method depends on what your dentist recommends.
- Aftercare. You will get instructions on what to avoid, such as strongly coloured foods and drinks, for a short time.
Sensitivity and aftercare
Some people notice temporary sensitivity or gum irritation. Tell your dentist if you have sensitive teeth before you start. Your dentist can suggest ways to reduce sensitivity.
How long do results last?
Results fade over time and depend on your habits, such as coffee, tea and smoking. Your dentist can talk with you about keeping your results.
Whitening compared with other cosmetic options
Whitening changes the shade of natural teeth. If the shape, chips or gaps bother you, options such as composite bonding or porcelain veneers may suit you better.
Next step
To talk about whitening, book a consultation or read about our teeth whitening service in Edmonton.
Frequently asked questions
Is professional whitening safe for enamel?
When used as directed and under a dentist's guidance, professional whitening is widely used. Your dentist will check your teeth first and advise whether it is suitable.
Will whitening make my teeth sensitive?
Some people have temporary sensitivity. Tell your dentist about any sensitivity before you begin.
How long do results last?
It varies. Coffee, tea, red wine and smoking can bring stains back sooner.
Does whitening work on crowns or fillings?
No. Whitening only changes natural tooth colour. Your dentist can explain options if restorations no longer match.
Can anyone have their teeth whitened?
Not everyone. Your dentist will check your teeth and gums, and may advise waiting if you have untreated problems.
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This guide is general information. It does not replace an exam. Your dentist will recommend what is right for you.