![Photo of a NTI appliance](https://drkaga.com/wp-content/uploads/2023/12/The-NTI.png)
The NTI (nociceptive trigeminal inhibitor) appliance is a small device that only covers your anterior teeth. It is made from acrylics and hard plastics, much like a night guard. The large difference between the NTI and a night guard is that the NTI device works to train your muscles to relax.