Tooth Whitening

teeth whitening

Tooth whitening has become one of the most popular ways to improve your smile by lightening the existing shade of your natural teeth. This is a simple and effective treatment which can be carried out by your dentist or at home. Tooth whitening is non-invasive treatment which does not involve drilling or removal of the tooth surface.

 There are many reasons why your teeth can become discoloured

  • Drinking tea, coffee or red wine
  • Food with strong colourings
  • Smoking
  • The natural act of ageing
  • A tooth which is damaged by trauma
  • Some teeth are naturally pigmented or stained as they develop
  • Certain medications

Only natural teeth respond to tooth whitening, Crowns, Bridges, Dentures or Implants cannot be whitened.

In-office Whitening



Our doctors at DP Dental offer the The BriteSmile® Whitening System - a one-hour in office treatment which can restore your teeth’s natural color by up to 14 shades.


Is Britesmile right for me?

If you have healthy, non-sensitive teeth and gums, you are a good candidate for this whitening system. If you have gum disease, thin gum tissue, sensitive teeth or thinning teeth, this may not be a good option for you. Our doctors will help you determine if BriteSmile is right for your needs.

How does BriteSmile work?

The BriteSmile system consists of a patented whitening gel that is applied to your teeth, and a revolutionary, patented BriteSmile light which will be positioned over your teeth to activate the gel. Because BriteSmile works best on clean, healthy teeth, our doctors will likely recommend a cleaning prior to whitening your teeth to remove food particles, plaque and tartar for the optimum whitening result. In addition, our doctors will also examine your teeth for decay, inflammation or fracture.



In-office Whitening Procedure

The BriteSmile whitening gel is applied at twenty-minute intervals, for a total of three applications.

  • Our doctor retracts your lips with a plastic retractor to fully expose your teeth.
  • A "before" picture is taken with a shade guide next to your teeth.
  • Our doctor applies an isolation material to your gums to prevent irritation.
  • The whitening gel is applied carefully to your teeth, followed by activation by the BriteSmile light.
  • You can relax for twenty minutes, our doctors will check your progress at intervals.
  • The whitening gel application is repeated twice more.
  • Rinse off the gel and you will see your white, dazzling smile!
  • You may notice your teeth looking "too white" after the treatment, which is due to mild dehydration. Your teeth's new, natural white colour should appear after 48 hours, when your teeth have rehydrated.
  • Our doctor will take an "after" picture with a shade guide next to your whitened teeth.
  • We will also issue your Opalescence Take-Home Whitening Kit with your customised trays for maintenance of your new smile.



Home Whitening 


Opalescence Take Home Whitening Gels are only available from your dentist, who will supervise your treatment from initial consultation through completion. The sticky, viscous gel won’t migrate to gums, and most formulations include Potassium Fluoride (PF), which helps to improve oral health by strengthening enamel, decreasing sensitivity, and offering increased cavity prevention.

Opalescence Take Home Whitening Gels are delivered via customized bleaching tray. Our doctors will create this tray from an alginate impression of your mouth; this customization is part of why Opalescence Take Home Whitening Gels are so effective. 

  • Home whitening can take up to 14 days to achieve your desired shade.
  • An impression (mould) is taken of your teeth using special dental "putty". The putty is placed into an impression tray; they are both then inserted into your mouth and pushed onto your teeth in order to take an impression. Once the dental putty is set the impression will be removed.
  • The moulds are sent to the Dental Laboratory where the technician will fabricate your custom made whitening trays.
  • The peroxide gel is placed into your trays the tray is then placed onto your teeth for a period of time.


The degree of whitening will vary from patient to patient; greyer teeth can take longer to respond. Tooth whitening is not permanent; the whitening process will need to be repeated every 12 – 18 months to keep your teeth at the shade you desire.


Please refer to our Post-Treatment Care page for Whitening Home Care Instructions.