Teeth grinding (bruxism)
Teeth grinding wears down enamel and stresses teeth. Learn signs and how to protect your teeth.
Medically reviewed by Dr. Jose — June 8, 2026
Bruxism (teeth grinding) wears down enamel, cracks teeth, and causes jaw pain. Often happens at night unconsciously.
Signs of grinding
- Worn-down teeth
- Jaw pain or soreness
- Headaches upon waking
- Earaches
- Facial pain
- Damaged fillings or crowns
- Partner hears grinding sounds
Common triggers
- Stress and anxiety — the #1 cause
- Sleep disorders — sleep apnea increases risk
- Caffeine — stimulants increase grinding
- Alcohol — especially before bed
- Misaligned bite — teeth don’t meet properly
- Some medications — certain antidepressants
Protection strategies
- Night guard — custom-made by a dentist; prevents tooth wear
- Stress management — exercise, meditation, relaxation
- Avoid caffeine — especially evening
- Limit alcohol — especially before bed
- Jaw exercises — gentle stretching and massage
- Warm compress — on jaw before bed for tension release
When to see a dentist
- Teeth show signs of wear
- Jaw pain or headaches
- A partner reports grinding
- Damage to existing fillings/crowns
A night guard is usually the most effective solution for nighttime grinding.
Frequently asked questions
How do I know if I grind at night?
Signs include jaw soreness, worn-down teeth, headaches upon waking, or a partner complaining about grinding sounds. A dentist can diagnose it.
What causes teeth grinding?
Stress, anxiety, sleep disorders, caffeine, alcohol, and misaligned bite can all trigger grinding. Identify and address triggers when possible.