SISU Mouth Guard
Mouthguard Faq

Which guard should I get: Aero, Max or Junior?

The choice of Aero vs Max is entirely up to you. Both guards will custom fit to your mouth, stay in the entire game, be comfortable and allow for natural flow of air and saliva, so you can talk, breathe and drink.

Max guards are 2.4 mm thin and provide 50% more protection and Aero Guards are 1.6 mm thin and provide 30% more protection.

Most of our customers in team sports wear an Aero Guard. The Max Guard is generally used in sports that either have a higher rate of direct facial contact (like boxing, MMA, BJJ, box lacrosse) or do not use helmets or face masks (Rugby, Quidditch, Field Hockey).

Our Junior Guard is the smaller version of Aero, designed for children between the ages of 6-11 years of age. If you have a smaller mouth but you are outside of this age group, you should still get an Aero guard. Please read our Q&A below to learn more fitting tips for smaller mouths and watch our fitting video to help you get the best fit.

How long will my SISU last?

Keeping it clean and letting it dry before storing will keep the germs at bay and extend the life of the guard. Your SISU guard is covered by a $35,000 dental warranty for up to 1 year after purchase.  We recommend you replace your sisu mouth guard once a season or at the very minimum at least once a year.

CAN i wear a sisu guard with braces?

Absolutely! However, it is essential that you have your mouthguard professionally fitted by your orthodontist or dentist. Also, for your child, be sure to purchase an adult-sized guard as opposed to the SISU Junior: a larger guard is essential for protecting braces. Click here to learn all about fitting your SISU with braces.

What if I want to remold my SISU guard?

Your SISU guard is remoldable up to 20 times.  Just put your guard in hot water and watch it return to its original shape.


I have a really small mouth… should I trim the mouthguard before fitting it?

With SISU, every part of the guard is an important player when it comes to getting the most protection out of your mouthguard: the perforations, the crumple zones, the boomerang shape. Not only will trimming the guard void any available dental warranty, but your teeth will be at a lot more risk for injury.

But I still have a small mouth…should I purchase a SISU Junior instead?

Again, no. By the time you turn 11, your jaw has fully formed. You’ll need all the material provided in any of our adult mouthguards to provide you with the best protection.

Do I need one top and one bottom or is just one SISU enough to protect my teeth?

You can certainly wear a SISU on your both top and bottom teeth, but most of our athletes prefer the comfort and strength that a single mouthguard provides. It's really a matter of preference.

Will the hardness of the mouthguard cause soft tissue bleeding if I take a blow to the face?

In order to best protect your teeth, we have done extensive research to make sure you are as safe as possible during game time. Every SISU is made of inherently hard material, so there’s a small chance your gums will be adversely affected if you are punched directly in the mouth. However, soft tissue damage is often much less dangerous and costly than teeth injuries.

Does my SISU contain any harsh chemicals?

None whatsoever! All of our mouthguards are PVC, Latex, BPA and Phthalate free. 

Can I use SISU to help against my night grinding?

We recommend that you use our SOVA night guard for grinding and clenching. SOVA is specifically engineered to diffuse and redistribute the forces of night grinding and clenching. SOVA doesn't go as high on the gum line, has a smaller profile  and is much more comfortable than SISU for night time use. Its design is specific to the night grinding and clenching.  While SISU can be used at night, under no circumstances should SOVA be used as an athletic guard. 

Do mouthguards protect against concussions?

It is a common misconception that mouth guards protect against concussions. That statement has no conclusive evidence exists that mouth guards can protect against concussions. What they can do, is protect against dental impact. Here, SISU Guards stand out in the following key areas:

– Less Impact Force Transfer
– Higher Force Absorption
– Less Deformation
– Higher tensile strength (toughness)

To learn more about the science behind our mouthguards, review our section on Diffusix Technology to learn how our mouthguard stacks up to competitors.

How do I clean and store my SISU?

Rinse your SISU thoroughly in lukewarm tap water and soap after each use. Alternatively, the mouthguard can be brushed with a regular toothbrush or non-abrasive, non-whitening toothpaste. Carefully rinse and dry before storing your SISU at room temperature, and consider purchasing a SISU Case to keep it safe and clean!


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