Do you often feel discomfort in your face and jaw, especially after eating or speaking for a long time? Have you learned that your teeth are worn down? Have you recently had a tooth that cracked or chipped out of the blue? If you answered yes to any of these questions, you may be experiencing the effects of bruxism — a common condition in which people grind or clench their teeth. Many patients are surprised to learn they grind their teeth, as it usually happens at night during sleep. Sleep bruxism can be dangerous because it can cause serious damage to your teeth and oral health.