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How to Clean Teeth Whitening Trays

As we get older though perhaps wiser, the signs of ageing sadly start to show, and there are few as apparent as the inevitable discolouration of your teeth. All those years of red wine, coffee and other naughty treats take their toll on your enamel and leave those once pearly whites looking a little more yellow. Thankfully there are a range of teeth whitening techniques out there that can bring back that youthful white-toothed grin and give you a smile that you want to show off.

One popular technique is using teeth whitening trays. These small plastic trays need to be worn anywhere from a couple of hours a day to throughout the night. However, your whitening trays can start to get pretty dirty with daily use. Pretty disgusting, right? Think of a kettle full of limescale. You wouldn’t want that water in your tea. That is why people always want to know how to clean teeth whitening trays.

Let our expert cosmetic dentists at Smile Stories show you how to clean your teeth whitening trays with our step by step guide. Alternatively, check out our helpful video below.

Follow Our Simple Teeth Whitening Tray Cleaning Tips

It’s important to clean your teeth whitening trays after every use. This will remove any leftover gel used and so will no longer have an effect. It also clears any debris left in the trays and stops stains from building up on them. 

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. Lightly dry with some tissue or a towel and place them back into your storage case. This will protect them from the elements, but you should also ensure they’re kept out of direct sunlight or hot rooms.

How to Clean Teeth Whitening Trays and Deal With Stubborn Stains

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 Retainer Brite. These effective cleaning tablets remove plaque and tartar and kill 99% of odour-causing bacteria. Want to know how to use Retainer Brite on your bleaching trays?

Follow these four easy steps:

  • Place one tablet into warm (not hot) water
  • Place your whitening trays into the bubbling water
  • Remove after 20 minutes
  • Enjoy teeth whitening trays that look and feel like new.

So there you have it! Pretty simple, right? Getting clean teeth whitening trays couldn’t be easier when you follow our step-by-step guide.

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.

Other Teeth Whitening Options

If you have been using teeth whitening trays and you haven’t seen the results you are looking for, or if you prefer an alternative form of teeth whitening treatment, check out our Smile Stories professional teeth whitening service. Our team of cosmetic dentists know exactly what they are doing when it comes to producing the “perfect smile”.

Our teeth whitening procedure starts with us removing all that stubborn staining from your teeth that a toothbrush just can’t tackle. After that, we turn the lights up and get whitening. Your professional teeth whitening results will speak for themselves. Take a look at our previous clients’ smile stories if you want to see the life-changing impact we have had.

Do you want professional teeth whitening from our cosmetic dentists? Book your free video consultation with our friendly team of experts, and look forward to a brighter smile.


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.