Bruxism
Bruxism is a condition in which you grind or clench your teeth. If you have bruxism, you may unconsciously clench your teeth when you are awake as well as asleep (sleep bruxism). In some cases, bruxism can lead to jaw disorders, headaches, damaged teeth and other problems.
Warning signs of bruxism can include teeth clenching or grinding, teeth that are flattened, fractured, chipped or loose, worn tooth enamel, tooth pain or sensitivity, tired jaw muscles, locked jaw, pain that feels like an earache, dull headache in the temples, injury on the inside of your cheek and/or sleeps disruption.