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How To Wash A Night Mouthguard



Night mouthguards, usually used to treat tooth grinding or overnight jaw clenching, are very common dental aids. In addition to mouth guards used for grinding or clenching, many people wear plastic retainers overnight. While useful for your overall health, night mouthguards and retainers can hold bacteria and can cause plaque buildup. It’s important that you take good care of your mouthguard and clean it daily in order to keep it in good condition and to protect yourself from potentially harmful bacteria.

 Wash A Night Mouthguard


When you remove your night mouthguard in the morning, you should rinse it immediately in warm water. This will get any bits of plaque or other debris off right away.


After you rinse your mouthguard you should give it a light brush. Don’t use toothpaste, as this can scratch the plastic and wear down the mouthguard prematurely. Some people like to use a separate brush for their mouthguard, but it’s completely hygienic to use the same brush as you use for your teeth. But make sure it’s a soft-bristled brush to avoid scratching the mouthguard.


Bacteria loves the damp! Allowing your mouthguard to dry completely will ward off bacteria growth. Rather than putting your mouthguard back in its case immediately after rinsing and brushing, place the guard on a clean, flat surface and allow it to dry completely. This should only take 15-30 minutes. Placing it right back into the case gives bacteria a dark, wet place to grow, which is definitely not a good idea!


Once your mouthguard is completely dry, you should put it back in its case. This will protect it from any dirt or bacteria in the area, as well as keep it safe and secure. A good place to keep your mouthguard is next to your bed.

Make sure you are regularly cleaning and disinfecting your case as well!


You should aim to deep clean your mouthguard at least once a week. For this, you can use any over-the-counter denture cleaner, or you can make your own solution. With a denture cleaner, simply follow the instructions on the box.

You can also clean your mouthguard using a solution of mouthwash and water. Pour a capful of mouthwash into a bowl and add enough water to completely submerge your mouthguard. Let sit for thirty minutes, then remove and rinse.

Make sure never to leave your night mouthguard soaking in any liquid for more than an hour as this can damage it!

By making cleaning your mouthguard part of your daily oral hygiene routine, you will ensure a healthy, clean mouth, and a long-lasting mouthguard!

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Dr. Stacey Stein
A graduate from the Faculty of Dentistry at the University of Toronto, Dr. Stacy Stein provides personalized care to each patient by explaining the risks and benefits of different treatment options in an honest way, and involves patients in their own care. With a focus on preventative, paediatrics, restorative, prosthodontics, and endodontics, she loves working with patients of all ages.