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How to Clean Teeth Whitening Trays

Don’t whiten dirty.

With daily use of whitening trays, it can be easy to allow dirt to build up. Think of a kettle full of limescale. You wouldn’t want that water in your tea.

Follow this simple method to ensure your whitening trays stay fresh and clean.

  1. It’s important to clean your teeth whitening trays after every use. This will remove any leftover gel that has been used and will no longer have an effect. It also clears any debris left in the trays and stops stains building upon them.
  2. Once you’ve removed them from your mouth, clean them with a soft toothbrush and water at room temperature. If you have soap then feel free, but don’t use toothpaste. Make sure you clean both the outside and inside of your trays.
  3. Lightly dry with some tissue or a towel and place them back into your storage case. This will protect them from the elements, but ensure it’s kept out of direct sunlight or hot rooms.

But dirt will build up eventually

It doesn’t matter how well you clean your teeth whitening trays, they may discolour or collect grime. To remove residue inside the trays I recommend RetainerBrite.

Follow these 3 easy steps:

  1. Place one tablet into warm (not hot water).
  2. Place your whitening trays into the bubbling water.
  3. Remove after 20 minutes.

P.S. Remember when you’re not using the bleaching gel it lives in the fridge. This will prolong its shelf life and stop the gel from activating.

If your teeth whitening trays are looking worse for wear or would like teeth whitening in Bournemouth then follow the link.


Dr Gareth Edwards BDS (Hons) MFDS RCPS (Glasg) qualified from dental school with honours. Working in the Bournemouth & Poole area, he has a particular interest in orthodontics and is a certified Invisalign provider.