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Instructions for using take-home teeth whitening:

It’s always best to thoroughly brush and floss your teeth before starting at-home teeth whitening regimen.

You will be given a set of whitening trays as well as bleaching gel as part of your take-home whitening treatment. To get started, make sure that you have your whitening gel and custom trays ready to go. Here are the steps involved in whitening your teeth:

Clean your teeth

It’s always best to thoroughly brush and floss your teeth before starting your whitening regimen. If your teeth are covered with plaque and tartar, the bleaching gel won’t properly penetrate your teeth surfaces and creates uneven results.

Apply the whitening gel into your trays

Remove the cap from the whitening syringe tip and carefully express the content evenly into the deepest portion of the tray. Place the gel towards the facial (front facing) side of the tray where you want the teeth whitened. There is no need to apply whitening gel on the inside surface or onto the back molar teeth. Apply the whitening gel according to the manufacturers recommendation evenly throughout the trays.

Wear your trays

Once ready, seat the tray carefully into your mouth. Firmly press the trays to sit them on top of your teeth. Use a soft toothbrush, or clean finger, to gently remove excess gel which flows beyond the tray’s edge. This will prevent the gel from harming your gum tissues. Adjust the amount after your first bleaching so that you know exactly how much you need next time. Wear your whitening trays for the recommended time as per the manufacturer. This could be anywhere from 30 minutes to overnight, depending on the strength of the whitening gel and your desired outcome. After the prescribed time, remove the tray from your mouth.


Once you’ve removed your whitening trays you can start brushing your teeth. Be sure not to swallow the excess bleaching gel. You should remove your custom trays prior to eating and/or drinking liquids. DO NOT smoke while bleaching your teeth. Remove any residual gel from your whitening trays and store them away for future use.

Dos and dont’s of teeth whitening:

Be aware that your teeth are naturally darker along the gum line. These areas may require more time to lighten than the rest of your teeth surfaces and usually remain slightly darker after teeth whitening. Here are things to do to maximize your teeth whitening results:

  • Do not use whitening gel while pregnant or lactating
  • Never eat while wearing your whitening trays
  • Avoid all tobacco products while wearing your trays
  • Don’t expose the whitening gel syringe to heat and/or sunlight

Will my teeth be sensitive afterwards?

A small percentage of patients experience sensitivity when bleaching their teeth. If this happens, we recommended that you bleach your teeth every second or third day. Additionally, use a fluoride treatment in your custom tray on the days you’re not bleaching your teeth. Finally, consider using a desensitizing toothpaste, such as Sensodyne toothpaste, to help reduce tooth sensitivity.

Maintaining your whitening results:

Be careful, especially for the next 2 days following your teeth whitening, in order to best maintain the whitening results. Avoid foods and juices high in citric acid which can cause tooth sensitivity. Avoid coffee, tea, red wine, tobacco and other foods and drinks which stain your teeth. A nice trick is to drink your tea and coffee from a straw so they don’t come in contact with your teeth surfaces.

It’s up to you how frequently you want to whiten your teeth. Some patients redo their whitening treatment biweekly, monthly or quarterly. Others only use them once a year. So long as you’re not damaging your teeth or gums in the process, feel free to use your whitening trays as it suits your needs. You may purchase additional bleach gel refills from our office or online. If you have any questions about at-home teeth whitening, feel free to give us a call.