Diffusix Technology

SISU Diffusix Technology

SISU Mouth Guards USA

SISU® is made from a non-compressible, perforated material and doesn’t cave in under impact like conventional mouthguards. Using our one-of-a-kind Diffusix™ technology, the impact force is distributed over larger areas, which means less risk of dental injury during competition.

“the perforations in the SISU mouthguard act similar to the trusses on a bridge, allowing the structure to flex when an impact occurs.”

Johannes Schwank, Ph.D

Conventional Mouthguard FlexabilitySISU Mouthguard Diffusion


Diffusix™ technology works with unique impact-absorbing perforations and special “crumple zones” which direct the impact forces away from your teeth. When a SISU mouthguard is properly fitted, these energy-absorbing zones direct forces away from your teeth, reducing the risk of dental injury.

Energy Absorbing Zones Directing force away from your teeth

But why the perforations?

There are several reasons why the perforations are important:

  • They help strengthen the material by oscillating under impact, similar to how support systems function for a bridge.
  • They help you best fit your SISU because they allow for air to freely flow through the guard. This gives you a very snug fit, allowing you to clearly communicate with teammates and easily breathe while wearing your guard.
  • They improve the fitting process by allowing airflow through the material.
  • They enable you to freely drink water and stay hydrated during gameplay, and also experience less drooling.

It's smart to be able to talk, drink & breathe easily with your mouth guard in place