Bruxism: Understanding Teeth Grinding and Clenching

What Is Bruxism?

Bruxism is the habit of grinding, gnashing, or clenching the teeth. It can happen during the day, often without awareness, or at night during sleep. Because nighttime grinding goes unnoticed, many people first learn about it from a partner or from their dentist.

Possible Causes and Signs

Stress and anxiety are commonly linked to bruxism. Sleep disturbances such as sleep apnea, certain medications, caffeine, alcohol, and bite irregularities may also contribute.

Signs can include flattened, chipped, or worn teeth, increased tooth sensitivity, a sore or tired jaw, morning headaches near the temples, and small ridges along the inside of the cheeks. Over time, grinding can damage teeth and restorations and may contribute to jaw joint discomfort.

Protecting Your Teeth

A custom-fitted night guard is one of the most common ways to protect teeth from the forces of nighttime grinding. It creates a cushioned barrier between upper and lower teeth and is made to fit comfortably. For daytime clenching, simply noticing the habit and gently relaxing the jaw, with lips together and teeth slightly apart, can help.

Managing stress, limiting caffeine and alcohol in the evening, and addressing any underlying sleep concerns may also reduce grinding.

Talking With Your Dentist

If you notice jaw soreness, headaches, or changes in your teeth, mention them at your next visit. Dr. McGuffie can look for signs of wear and discuss whether a night guard or other approach would be helpful for you.