Table of Contents
Brazilian Jiu Jitsu is a sport where pressure, scrambles, and accidental head clashes are unavoidable. While many beginners delay buying one, a high-quality mouthguard quickly becomes one of the most important pieces of BJJ gear you can own. Protecting your teeth, jaw, and gums isn’t optional, especially once training intensity increases.
In this guide, we break down the best mouthguards for BJJ, covering no-gi rolling, competition, kids’ training, and braces-friendly options. We’ll also explain what actually matters when choosing a BJJ mouthguard so you don’t waste money on the wrong type.
If you’re still dialing in your full setup, you may also want to check out Best BJJ Gear You Should Be Using in 2026, which covers everything from gis to no-gi essentials.
Mygritflow.com may receive advertising or affiliate commission if you buy via our links. Read more here.
Why Wearing a Mouthguard Is Essential for BJJ
Unlike striking sports, most dental injuries in BJJ come from:
- Accidental head clashes during takedowns
- Knees or elbows during scrambles
- Jaw clenching under pressure
- Being stacked or cross-faced
A proper BJJ mouthguard helps:
- Absorb impact forces
- Reduce risk of chipped or broken teeth
- Protect the jaw and temporomandibular joint (TMJ)
- Reduce concussion risk
If you’re already investing in quality rashguards and shorts, a mouthguard should be considered part of your core kit.
For gi athletes, pairing a quality mouthguard with a well-fitted gi is just as important. (See The Best BJJ Gis of 2025: Ultimate Guide to the Top Jiu-Jitsu Gis if you’re still deciding.)
What to Look for in the Best BJJ Mouthguard
Before we get into product recommendations, here’s what actually matters for grappling.
Low Profile & Breathability
Bulky mouthguards designed for football can interfere with breathing and communication during rolls. BJJ mouthguards should sit close to the teeth.
Strapless Design
Most gyms and competitions do not allow tethered mouthguards. Always choose a strapless model.
Secure Fit
If it shifts while rolling, it’s unsafe and distracting. Custom-fit or high-quality boil-and-bite options are ideal.
Competition Compliance
IBJJF-style rules generally allow mouthguards as long as they’re not attached or modified dangerously.
Best Low-Profile Mouthguard for BJJ: SISU Aero Guard
SISU Aero Guard (Medium) is one of the most popular mouthguards in grappling, and for good reason.
Why it’s great for BJJ
- Ultra-thin, low-profile design
- Excellent airflow for breathing under pressure
- Lightweight and comfortable during long rolls
- Favoured by experienced grapplers
Unlike traditional bulky guards, the SISU Aero allows you to talk, breathe, and stay relaxed while still offering solid protection. This makes it ideal for both training and competition.
Best for:
✔ Advanced practitioners
✔ No-gi training
✔ Competition use
If you train no-gi regularly, this pairs well with minimalist gear choices discussed in Best Online BJJ Course for 2026, where no-gi systems and competition prep are heavily featured.
Best Custom-Fit Mouthguard for BJJ: OPRO Instant Custom-Fit
If you want a step closer to dentist-level fit without the dentist price, OPRO’s Instant Custom-Fit Mouthguard is an excellent option.
Why it stands out
- Uses compression-cage fitting technology
- More secure than standard boil-and-bite guards
- Comfortable under prolonged jaw pressure
- Available in adult and youth sizing
This is a great choice if you’ve struggled with mouthguards shifting during rolls.
Best for:
✔ Serious hobbyists
✔ Competition prep
✔ Those wanting superior fit without full custom pricing
If competition is on your radar, remember to always check the ruleset of your organization, some promotions have thickness and color restrictions, similar to how gi specs are regulated (covered in The Best BJJ Gis of 2025: Ultimate Guide to the Top Jiu-Jitsu Gis).
Best Mouthguard for Kids Training BJJ
For children and teens training BJJ, fit and comfort matter more than maximum bulk.
The 3-Pack Kids & Youth Mouthguards offer:
- Soft EVA material
- Youth-friendly sizing
- Affordable multi-pack value
- Suitable for regular training
These are ideal for parents who want a simple, protective option without overspending, especially as kids grow quickly.
Best for:
✔ Kids BJJ classes
✔ Beginners
✔ Parents wanting value
If your child is also starting no-gi classes, pairing a mouthguard with appropriate rashguards and shorts is key, something you may want to explore alongside Best Online BJJ Course for 2026 for structured learning.
Best Dual-Layer Mouthguard for Extra Protection: SafeJawz
If you want a bit more protection without going full bulky, SafeJawz Dual-Layer Mouthguards strike a good balance.
Key benefits
- Dual-layer impact protection
- Jaw-secure fit
- Still slim enough for grappling
- Comes with storage case
This is a solid option for harder rolls, competition camps, or cross-training MMA alongside BJJ.
Best for:
✔ Heavy training intensity
✔ Cross-training MMA
✔ Larger grapplers
Trusted Classic BJJ Mouthguards: Shock Doctor & Venum
Shock Doctor Mouthguard
A long-time staple in combat sports, Shock Doctor mouthguards are reliable, affordable, and widely available.
Best for:
✔ Beginners
✔ Gym training
✔ Budget-friendly option
Venum Challenger Mouthguard
Designed specifically for combat sports, Venum’s Challenger offers good protection with a sport-specific fit.
Best for:
✔ Fans of Venum gear
✔ MMA & BJJ crossover athletes
These are great choices if you’re still building your kit, especially if you’re prioritizing spending on higher-ticket items like gis or instructional content (see Best BJJ Gear You Should Be Using in 2026)
Best Mouthguard for Braces & Orthodontics: OPRO Snap-Fit
If you train BJJ with braces, you must use a braces-compatible mouthguard.
The OPRO Snap-Fit Braces Mouthguard is designed to:
- Fit securely over braces
- Protect teeth, lips, and brackets
- Allow for orthodontic movement
This is one of the safest and most trusted options available for grapplers with braces.
Best for:
✔ Braces wearers
✔ Teen and adult BJJ students
Always ensure the mouthguard fully covers both teeth and braces without pressure points, similar to how proper gi sizing prevents restriction and discomfort (explained in The Best BJJ Gis of 2025: Ultimate Guide to the Top Jiu-Jitsu Gis).
How to Fit Your BJJ Mouthguard Properly
No matter which mouthguard you choose, correct fitting is essential.
Basic fitting tips:
- Follow manufacturer heating instructions exactly
- Bite gently, don’t over-clench
- Ensure even contact across teeth
- Let it fully cool before training
A poorly fitted mouthguard can be worse than none at all.
Do You Really Need a Mouthguard for BJJ?
Short answer: Yes.
Even if your gym doesn’t enforce it, dental injuries are expensive, painful, and easily avoidable. A mouthguard is a small investment compared to dental work, and once you get used to wearing one, rolling without it feels risky.
Pairing a quality mouthguard with proper rashguards and shorts completes your essential BJJ kit.
Final Thoughts: Choosing the Best BJJ Mouthguard
The best BJJ mouthguard is the one that:
- Fits securely
- Allows easy breathing
- Stays in place during scrambles
- Meets competition requirements
Whether you prefer ultra-low profile (SISU), custom-style fit (OPRO), or durable classics (Shock Doctor, Venum), investing in the right mouthguard will protect your health and longevity in the sport.
If you’re continuing to build your setup, your next reads should be:
Pingback: Grip Strength Training for BJJ: Best Tools to Dominate in Gi