Teeth Whitening

Take Home and in Office Teeth Whitening

Tooth whitening (or bleaching) is a simple, non-invasive dental treatment used to change the colour of natural tooth enamel and is an ideal way to enhance the beauty of your smile.

Having white teeth has now become the number one aesthetic concern of most patients. Basically there are two main ways to whiten teeth, one is Take-home whitening system and the other is In-chair whitening system.

Take-home whitening is more common in people who prefer the comfort and privacy of their home to achieve the desired results..

In-chair whitening consists of high-strength whitening gels that is activated by a high energy light source under the supervision of your dentist. Since tooth whitening only works on natural tooth enamel, it is important to consider replacement of any old fillings, crowns, etc. In-chair whitening involves replacement of any restorations that are being done after bleaching so as to match with the newly bleached teeth.

In-chair whitening may achieve up to eight shades lighter in a 90-minute treatment session. Tooth whitening is not permanent. A touch up may be needed after a year or so, and more often if you smoke, drink coffee, tea, or wine.

Reasons for tooth whitening:

  • Fluorosis (excessive fluoridation during tooth development)
  • Normal wear of outer tooth layer
  • Stained teeth due to medications (tetracycline, etc.)
  • Yellow, brown stained teeth


Take home whitening usually requires two visits. At the first appointment, impressions (moulds) will be made of your teeth to fabricate custom clear plastic trays.

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