Night time clenching and grinding of your teeth (bruxism) is a common problem experienced by people. This causes excessive wear of your teeth, microfractures and problems with existing crowns and fillings. Bruxism can contribute to TMJ problems, migraines, earaches and soreness of the teeth and jaws. Custom made nightguards are an excellent way to protect teeth from the excessive wear and relieve the pain related to bruxism.