We recommend an Orthopedic Splint for Nighttime Use (OSNU) for our patients who clench and grind. Unlike a night guard, which is just a sacrificial piece of plastic to protect against wear, an OSNU mimics natural tooth function and therefore quiets the tendency to clench and grind in the first place. The OSNU will not only protect the teeth from wear, but also relax the muscles, stabilize the jaw joint, and discourage headaches. And because it is milled from a solid piece of PMMA using proprietary software, it stays clean and does not have an odor or taste. Most of our patients use our OSNU nightly year after year and report high satisfaction with this appliance.