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Night Guards for Bruxism: Stopping Sleep Teeth Grinding

Date Published

Bruxism is unconscious teeth grinding or jaw clenching, often during sleep, that can wear teeth and cause jaw pain and headaches. A custom night guard protects the teeth, while managing stress and treating any sleep apnea addresses the triggers. It often occurs alongside sleep apnea.

Quick answer: Bruxism is unconscious teeth grinding or jaw clenching, usually during sleep, that wears down teeth and causes jaw pain, headaches, and disrupted sleep. A custom night guard protects the teeth from damage, while managing stress and treating any underlying sleep apnea goes after the common triggers. Sleep bruxism and obstructive sleep apnea show up together often enough that grinding plus snoring is worth a proper sleep evaluation.

Most people find out they grind their teeth from a dentist or a bed partner, not because they feel it happening. By the time it shows up, there's often already some damage done. The good news: it's manageable once you protect the teeth and deal with what's driving it.

What is bruxism?

Bruxism is involuntary grinding or clenching of the teeth. Sleep bruxism happens during sleep and is classified as a sleep-related movement disorder; awake bruxism is the daytime clenching a lot of people do under stress, sometimes without realizing it. Sleep bruxism tends to cluster around brief arousals from sleep, which is part of why it overlaps with other sleep problems.

Signs and damage

  • Worn, flattened, chipped, or sensitive teeth
  • Jaw soreness, tightness, or clicking (and sometimes TMJ pain)
  • Dull morning headaches around the temples
  • Disrupted sleep for you or your bed partner from the grinding sound
  • Tongue indentations or cheek-line ridges from clenching

What causes it

There's no single cause. Sleep bruxism is linked to the brief arousals that punctuate normal sleep, and it's associated with stress and anxiety, caffeine and alcohol, smoking, certain medications (including some antidepressants), and, importantly, obstructive sleep apnea. In many people the grinding actually follows the micro-awakenings that apnea triggers, which is why treating the apnea can quiet the grinding.

Night guards: custom vs over-the-counter

A night guard (occlusal splint) is the first line of defense for protecting teeth. Custom guards made by a dentist fit precisely, last longer, and are more comfortable, which means you actually wear them. Over-the-counter boil-and-bite guards cost less and can work short term, but they're bulkier and wear out faster. Either way, the guard protects your teeth. It doesn't stop the grinding itself.

The sleep apnea connection

This is the part people miss. Sleep bruxism and obstructive sleep apnea show up together often enough that grinding can be a clue to undiagnosed apnea. If you grind and also snore loudly, wake with headaches, or feel exhausted after a full night's sleep, treating the apnea may reduce the grinding, and it addresses a far more serious health risk at the same time.

Treating the trigger

A lasting fix usually pairs the night guard with whatever's causing the problem: stress management and good sleep habits, cutting back on caffeine and alcohol, reviewing medications with your doctor, and ruling out sleep apnea. Treat the trigger and you protect both your teeth and your sleep, instead of just absorbing the damage night after night.

Advanced Sleep Medicine Services has been helping Californians uncover the sleep problems behind symptoms like teeth grinding since 1994. We're accredited by the Accreditation Commission for Health Care (ACHC), and board-certified sleep physicians review every study. If you grind your teeth and also snore or wake unrefreshed, a home sleep test can check for apnea. Call (877) 775-3377 to learn more.

Frequently asked questions

Treatment combines a custom night guard to protect the teeth with addressing the triggers: stress management, cutting caffeine and alcohol, reviewing medications, and treating any underlying sleep apnea. A dentist or sleep clinician can identify the cause and the right mix.

Sleep bruxism is linked to brief arousals during sleep and is associated with stress, some medications, caffeine and alcohol, and obstructive sleep apnea. Because apnea is a common driver, grinding plus snoring is worth a sleep evaluation.

A night guard protects your teeth and eases jaw strain, but it does not stop the grinding itself. Lasting improvement comes from treating the trigger, such as managing stress or treating sleep apnea, alongside wearing the guard.

Yes. Sleep bruxism and obstructive sleep apnea often occur together, and grinding can follow the brief arousals apnea causes. If you grind your teeth and also snore or wake unrefreshed, ask about a sleep test.

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