 are you waking up in the morning with a sore jaw headaches ringing in your ears all because you're grinding and clenching your teeth at night that's exactly what was going on with me i ended up going to a dentist and he wants to charge over six hundred dollars for a night guard that's when i found the brux night guard you mold it at home to the top or bottom teeth other mouth guards go all the way to the back which allows the back teeth to touch