This DIY bruxism detector prevents jaw clenching during sleep

At some point in your life, you’ve probably had a doctor or dentist ask you if you clench your jaw or grind your teeth — particularly at night. That is called bruxism and it can have serious effects, such as tooth damage, jaw pain, headaches, and more. But because it often happens when you’re asleep and unconscious, it can be very difficult to prevent. To help sufferers alleviate those symptoms, Andrea designed this DIY bruxism detector that trains the user to stop clenching.

This device has three core functions: detecting clenching, notifying the user of detected clenching, and logging clenching data. The idea is that by becoming aware of clenching instances, the user can train themselves to stop while they’re awake. That will then translate to less clenching when they’re asleep. Even if that training doesn’t work, the device can wake the user when it detects clenching. And thanks to the data logging, users can identify patterns and triggers. For instance, the device might help a user learn that coffee increases their bruxism.

The hardware to make that all possible includes an Arduino UNO R4 WiFi board and an Olimex SHIELD-EKG-EMG. The latter monitors the biosignals associated with the user’s jaw muscles. It does require that the user place electrodes on their head/face with ultrasound gel, which won’t be comfortable. But it should be better than symptoms caused by severe bruxism.

The device has a couple of 3D-printable enclosures available, with one designed for bedside use and one that clips onto a belt for daytime use. And there is a companion Android app where the user can look at the gathered data and analyze the results.

This bruxism detector should cost less than $120 to build, making it a relatively affordable option for those who need help to stop clenching.