Teeth grinding, known clinically as bruxism, affects roughly 8 to 15% of adults, and stopping it requires addressing the underlying cause rather than relying on willpower alone. Most people grind during sleep without realizing it, which means the fix usually involves a combination of protective devices, habit changes, and sometimes treating a separate condition that’s driving the grinding in the first place.
Why You’re Grinding in the First Place
Bruxism splits into two types: awake grinding and sleep grinding. They share some triggers but behave differently. Awake bruxism is closely tied to emotions like stress, anxiety, anger, and frustration. It can also be a focus habit, something your jaw does automatically when you’re concentrating or under pressure. Sleep bruxism is more complex. It’s linked to brief arousals during sleep, those micro-awakenings your brain cycles through at night, and it tends to run in families.
Several medical conditions raise your risk. Sleep apnea is one of the biggest: studies using overnight sleep monitoring have found that roughly 43 to 50% of people with obstructive sleep apnea also grind their teeth, far above the general population rate. GERD, ADHD, Parkinson’s disease, and epilepsy are also associated with grinding. Personality plays a role too. People who are naturally competitive, aggressive, or hyperactive grind more often.
One commonly overlooked trigger is medication. Antidepressants that affect serotonin levels, including SSRIs and SNRIs, are well-documented causes of bruxism. If your grinding started or worsened after beginning an antidepressant, that connection is worth raising with your prescriber. Adjusting the medication or adding a counteracting drug can resolve it.
Night Guards: Custom vs. Store-Bought
A night guard won’t stop you from grinding, but it protects your teeth from the damage grinding causes: cracked enamel, worn-down surfaces, and jaw joint strain. For most grinders, wearing one during sleep is the first practical step.
Custom-fitted guards from a dentist are made from impressions of your teeth and offer the most accurate, comfortable fit. They stay in place reliably and are shaped to support your bite properly. Over-the-counter guards are cheaper, but they come with real drawbacks. A study published in the British Dental Journal found that store-bought and online night guards are associated with tissue damage, teeth shifting, and in some cases a choking hazard. The poor fit means the guard can press on teeth unevenly or slip during the night.
If cost is a barrier, an OTC guard is better than nothing for short-term protection, but it’s not a long-term solution. Many dental offices offer payment plans for custom guards, and some dental insurance covers part of the cost.
Jaw Exercises That Reduce Tension
Your jaw muscles respond to the same tension-release cycle as any other muscle group. A few simple techniques, practiced consistently, can reduce grinding intensity over time.
- Tongue positioning. Place your tongue against the backs of your upper front teeth. This physically prevents your upper and lower teeth from making contact and trains your jaw into a resting position. Use this throughout the day whenever you catch yourself clenching.
- Gentle jaw stretches. When you feel tension building, slowly open your mouth as wide as comfortable, hold for a few seconds, then close. Repeat several times. This loosens the large muscles on the sides of your jaw.
- Clench-and-release awareness. If you have trouble noticing when your jaw is tense, deliberately clench your jaw muscles for five seconds, then slowly relax them. The contrast helps you recognize what a relaxed jaw actually feels like, so you can catch tension earlier.
These exercises work best for daytime grinding. For sleep bruxism, they can reduce the baseline tension your jaw carries into the night, but they won’t override an unconscious grinding habit on their own.
Stress and Anxiety Management
Because stress and anxiety are among the strongest drivers of bruxism, addressing them directly can reduce grinding frequency. This doesn’t mean vague advice to “relax more.” It means identifying what specifically ramps up your jaw tension and intervening there.
Cognitive behavioral therapy has the most evidence behind it for stress-related bruxism. It helps you recognize the thought patterns and emotional states that trigger clenching, then build alternative responses. Even without formal therapy, paying attention to when you grind during the day reveals patterns. Many people notice it peaks during commuting, working at a computer, or scrolling their phone. Once you know your triggers, you can set reminders to check in with your jaw at those moments and consciously relax it.
Progressive muscle relaxation before bed, where you systematically tense and release muscle groups from your feet up to your face, can lower overall tension going into sleep. Some people find that a warm compress on the jaw for 10 to 15 minutes before bed loosens the muscles enough to reduce nighttime grinding.
Botox Injections for Severe Grinding
Injecting botulinum toxin into the jaw muscles weakens them just enough to reduce the force of grinding. It’s typically reserved for people whose grinding causes significant pain or dental damage despite other interventions.
A randomized, placebo-controlled study published in BMJ Neurology Open tested injections into the large chewing muscles at varying doses. Grinding intensity dropped significantly at 4 weeks compared to placebo. However, the effect did not last: by 12 weeks, there was no difference between the treatment and placebo groups across any dosage level. This means Botox for bruxism requires repeat treatments roughly every 3 to 4 months to maintain results. The injections reduce jaw muscle bulk over time, which is why some people notice their grinding gradually becomes less severe even between treatments.
Botox is not a first-line approach. It’s expensive, requires ongoing appointments, and the long-term effects of repeated jaw muscle weakening aren’t fully understood. But for people with severe, treatment-resistant grinding, it offers meaningful short-term relief.
Biofeedback Devices
Biofeedback is a newer approach that uses a sensor to detect when you’re grinding and delivers a gentle vibration to interrupt the behavior. A 14-week trial tested an oral appliance with a built-in vibration system on 20 people with confirmed sleep bruxism. Participants wore the device nightly for weeks, and the duration of grinding episodes dropped significantly during the active treatment period. The catch: once the vibration feedback stopped, grinding returned to previous levels within two weeks. Like Botox, biofeedback appears to suppress grinding only while you’re actively using it, not retrain the behavior permanently.
These devices aren’t widely available yet and can be costly. But they represent a promising option for people who want an alternative to a standard night guard, particularly if protecting teeth isn’t enough and reducing the grinding itself matters for pain management.
Check for Sleep Apnea
Given that nearly half of people with obstructive sleep apnea also grind their teeth, untreated airway problems are one of the most important hidden causes to rule out. Sleep apnea causes repeated micro-awakenings through the night, and these disruptions appear to trigger grinding episodes. If you snore loudly, wake up feeling unrested despite enough hours in bed, or your partner notices you stop breathing during sleep, a sleep study is worth pursuing.
Treating sleep apnea, usually with a CPAP machine or an oral appliance that holds the airway open, often reduces or eliminates grinding as a side effect. This is one of the few scenarios where bruxism resolves by fixing a completely separate problem.
When Grinding Has Already Caused Damage
Chronic grinding puts enormous pressure on the jaw joints, the two small joints just in front of your ears. Over time, this can lead to temporomandibular disorders, which cause jaw pain, clicking or popping when you open your mouth, difficulty chewing, and sometimes locking of the jaw in an open or closed position. Headaches, earaches, and facial pain that seem unrelated to your teeth can all trace back to grinding-related joint strain.
Diagnosis involves a physical exam where a provider checks your jaw’s range of motion, presses around the joint for tenderness, and listens for clicking as you open and close. Imaging with X-rays, CT scans, or MRI may follow if the exam findings are unclear. Treatment typically starts conservatively with soft foods, heat or ice, anti-inflammatory medication, and physical therapy targeting the jaw muscles. Surgery is rarely needed.
Grinding in Children
If your child grinds their teeth, the timeline matters more than the grinding itself. Most childhood bruxism disappears by age 6 as the jaw develops and baby teeth give way to permanent ones. It’s considered a normal developmental phase in toddlers and preschoolers.
The signs that warrant a dental or medical visit are persistent face, ear, or jaw pain alongside loud nighttime grinding, or evidence that permanent teeth are being damaged (chipping, cracking, visible wear). If your child grinds heavily and also seems poorly rested despite adequate sleep hours, a sleep study can check for pediatric sleep apnea, which drives grinding in children just as it does in adults.
Medication-Related Grinding
Antidepressants that boost serotonin levels are the most common medication culprits. The proposed mechanism is that elevated serotonin in certain brain pathways suppresses dopamine activity, leading to involuntary jaw muscle contractions similar to restlessness in the legs. If the timing of your grinding lines up with starting or increasing an antidepressant, a medication adjustment may help.
One well-studied option is adding a low-dose anti-anxiety medication called buspirone, which partially counteracts the serotonin imbalance driving the grinding. Multiple case reports have shown it effectively resolves antidepressant-induced bruxism. Other strategies include switching to a different antidepressant class or adjusting the dose. These decisions depend on your specific situation and should be worked out with your prescriber, since stopping an antidepressant abruptly carries its own risks.