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Custom Mouthguard with Impact Sensor

This custom mouthguard is made to protect teeth in a more comfortable way—while monitoring impacts to the head and mouth. It’s about half as thin as other mouthguards and you mold it to a perfect, custom fit yourself at home. (It’s remoldable up to 20 times.) A perforated surface redirects impact away from teeth and allows for better airflow. You can talk and breathe normally and even drink with it in—you just might forget you’re wearing it. Made in the USA.

  • Instructions: See guide for fitting instructions. The guard should not be too tight or too loose. You should be able to remove with fingers but not with your tongue
  • HitSense‚Ñ¢ technology in embedded sensor is completely sealed within the mouthguard and requires no maintenance
  • Connecting the mouthguard to the SISU Sense app is simple and straightforward
  • Thin design makes the mouthguard comfortable
  • Perforated construction provides natural flow of air and saliva to allow wearer to talk normally, breathe naturally, and stay hydrated
  • Patented Diffusix‚Ñ¢ technology distributes impact to redirect force away from teeth
  • BPA-, latex-, PVC-, and phthalate-free
  • Rounded beveled edges soften the point of contact between the guard and the mouth
  • Flexible material. When heated provides custom fit, remoldable up to 20 times
  • Product battery lasts for approximately 170 hours of use after battery activation (based on normal usage and proper care)
  • 1 year dental warranty
  • Please note: Do not expose to direct sunlight, do not store in temperatures exceeding 100¬∞ Fahrenheit. Mouthguard is not a medical or diagnostic device. The mouthguard detects impacts and does not replace concussion detection protocols. The data should be used to identify if an impact has occurred and the level of impact, it does not diagnose concussions
Made in the USA




One un-molded mouthguard


3.5" x 2.5"


0.026 lb


100% biocompatible thermoplastic


Soak mouthguard in peroxide for no longer than 5 minutes



The idea to create the SISU mouthguard was born on the operating table. Maker Jan Akervall wanted to help protect the teeth of his patients. As an otolaryngology surgeon, he knew their teeth were often exposed to potential damage during procedures. Back at home, Dr. Akervall’s kids were complaining about the mouthguards they had to wear while playing sports. He and his wife Sassa realized the protection he envisioned for his patients’ teeth was also the perfect fit for sports-playing kids and grown-ups. His SISU mouthguards are a fresh new approach to protecting teeth. The bulk has been streamlined out without sacrificing strength, thanks to an impact-absorbing perforated surface that won’t collapse, but instead redirects impact away from teeth. The mouthguard is lightweight, breathable, and so comfortable, many athletes forget they have one in. (Really!) It’s up to 50% thinner than others, so you can easily drink and talk with one in. The best part might be that with SISU, you get a truly custom fit. You can mold it yourself at home and it is remoldable up to 20 times.