
Meets the Welpr Standard
Top Pick
SISU
3D Mouthguard
- Free From
- BPA Free, BPS Free, Phthalate Free
- Highlights
- Made in USA, Dishwasher safe, 1 year warranty, For Sports protection, Pre-formed, Upper teeth only
8.3
Performance score
010
Where to buy
- AmazonSee price
Pros
- Extremely thin profile compared to traditional mouthguards; multiple people compared it to wearing Invisalign.
- Easy to speak clearly and drink water while wearing it.
- Molds tightly to teeth and stays firmly in place during contact sports.
- Provided real impact protection; one player took an elbow to the mouth and the guard did its job.
Cons
- Molding takes some practice; several people needed two attempts or had to carefully follow the instructions to get a good fit.
- The included case is difficult to open and oversized; one person noted the sharp lip can scrape your finger when it pops open.
- Not compatible with braces; one person's guard adhered to the brackets and had to be removed at an orthodontist.
- Unlike traditional boil-and-bite mouthguards that start as a flat sheet, the 3D comes pre-formed into a mouth shape, so fitting is mostly just softening it in hot water and pressing it to your teeth for a custom seal.
- Built-in perforations aren't just for comfort. They work like trusses on a bridge, flexing on impact to redirect force away from teeth and into reinforced "crumple zones" throughout the guard.
- Thin enough that you can talk, breathe, and drink without removing it. Most athletes leave it in for an entire game or practice rather than pulling it in and out.
- Works with braces (adult size only), and since it can be remolded up to 20 times, you can re-fit it as teeth shift during orthodontic treatment rather than buying a new one each time.
- Invented by a head and neck surgeon (Dr. Jan Akervall) and developed alongside a University of Michigan chemical engineering professor. The medical-grade thermo-polymer they use is roughly 30% stronger in tensile strength than the EVA found in most over-the-counter non-toxic mouth guards.
- Comes in Youth (under 5') and Adult (over 5') sizes. Sized for sports like lacrosse, soccer, basketball, hockey, and roller derby rather than strictly high-impact combat sports.
- High-Tech Thermoplastic






