Teeth grinding, known clinically as bruxism, affects roughly one in five people worldwide. Treatment depends on whether you grind during sleep, clench during the day, or both, and ranges from simple habit changes to custom dental appliances and targeted injections. Most people see significant improvement with a combination of approaches rather than a single fix.
Why You’re Grinding in the First Place
Teeth grinding isn’t just a bad habit. It’s driven by a mix of factors, and identifying yours helps you pick the right treatment. Stress and anxiety are the most common triggers for daytime clenching, while sleep grinding often has a different root cause entirely.
Nearly half of adults with obstructive sleep apnea also grind their teeth at night, a rate far above the 8 to 13 percent seen in the general population. If you snore heavily, wake up with headaches, or feel exhausted despite a full night’s sleep, untreated sleep apnea may be fueling your grinding. Treating the breathing problem often reduces or eliminates the grinding on its own. Alcohol, caffeine close to bedtime, and certain medications (particularly some antidepressants) can also trigger or worsen nighttime grinding.
Custom Mouthguards and Splints
A custom-fitted occlusal splint is the most common first-line treatment. These are hard or soft plastic trays molded to your teeth that sit between your upper and lower jaw while you sleep. They don’t stop the grinding motion itself, but they protect your teeth from damage and can dramatically reduce jaw pain and headaches. Research shows that occlusal splints reduce the force of clenching muscles by about 80 percent in severe grinders and take pressure off the jaw joint.
You have a few options for getting one. A dentist typically takes a mold of your mouth during one visit, sends it to a lab, and fits the finished guard at a second appointment. Online retailers offer a cheaper alternative: they mail you an impression kit, you take the mold yourself, and the lab ships back a custom guard. Both produce a personalized fit. Over-the-counter “boil and bite” guards from a drugstore are the most affordable option, but they’re bulkier, less durable, and often fit poorly enough that people stop wearing them.
Whichever route you choose, the guard only works if you actually wear it. It takes most people a week or two to adjust to sleeping with something in their mouth. If your first guard feels uncomfortable, it’s worth going back to have it adjusted rather than abandoning it.
Jaw Exercises and Physical Therapy
Targeted stretching can help relax the muscles responsible for clenching. The simplest exercise is a controlled jaw stretch: slowly open your mouth as wide as you comfortably can, hold for a few seconds, then gently close. Repeating this several times when you notice tension building helps interrupt the clenching cycle. You can also place the tip of your tongue on the roof of your mouth and let your jaw drop open naturally. This trains your jaw muscles to release rather than stay locked.
For more persistent pain, a physical therapist who specializes in the jaw (often called a TMJ specialist) can work on the muscles of your face, neck, and head. Manual therapy on the masseter, the large muscle along your jawline, and the temporalis muscle on the side of your head can relieve built-up tension. Many people with chronic grinding carry significant tightness in their neck and shoulders too, so treatment often extends beyond the jaw itself.
Botox Injections for Severe Grinding
When splints and exercises aren’t enough, injections that temporarily relax the jaw muscles offer another option. A provider injects small amounts into the masseter muscles on each side of the jaw. This doesn’t paralyze the muscle or prevent you from chewing. It reduces the maximum force the muscle can generate, which lowers the intensity of grinding.
Results typically become noticeable within two weeks, peak around three months, and fade by about six months. Most people need repeat injections every three to four months initially, though the dose often decreases over time as the muscle weakens and shrinks. A randomized, placebo-controlled trial using overnight sleep monitoring confirmed that the injections significantly reduce the intensity of grinding contractions, with effects lasting at least 12 weeks.
The treatment isn’t cheap, and insurance coverage varies. But for people with severe grinding who’ve cracked teeth or developed chronic jaw pain, it can be a meaningful step up from a mouthguard alone.
Stress Management and Daytime Habits
About one in four people experience daytime clenching, and stress is the primary driver. No mouthguard helps during waking hours, so managing daytime grinding requires a different approach. The first step is simply awareness. Many people clench without realizing it, especially while concentrating, driving, or feeling tense. Setting periodic reminders on your phone to check your jaw position can break the cycle. Your teeth should only touch when you’re actively chewing food.
Cognitive behavioral therapy has shown effectiveness for bruxism tied to stress or anxiety. The goal is to identify the emotional triggers that lead to clenching and develop alternative responses. Even basic relaxation techniques like progressive muscle relaxation, where you deliberately tense and then release muscle groups throughout your body, can reduce overall tension levels enough to affect your jaw.
Regular exercise, limiting caffeine (especially after noon), and avoiding alcohol in the evening all help reduce nighttime grinding as well. These changes won’t eliminate bruxism on their own for most people, but they make other treatments work better.
Medications: Limited but Sometimes Useful
Medications play a small role in treating bruxism. The Mayo Clinic notes that medicines are generally not very effective for grinding and that more research is needed. That said, a short course of muscle relaxants taken before bed can help break the cycle during a severe flare-up. Anti-anxiety medications or low-dose antidepressants are occasionally prescribed when stress or anxiety is clearly driving the problem, but these are short-term solutions rather than ongoing treatment.
If your grinding started or worsened after beginning a new medication, it’s worth flagging this to your prescriber. Certain antidepressants, particularly SSRIs, are known to cause or worsen bruxism as a side effect. Adjusting the dose or switching medications sometimes resolves the grinding entirely.
Check for Sleep Apnea
This is the most overlooked piece of the puzzle. Studies consistently find that 40 to 50 percent of people with obstructive sleep apnea also grind their teeth at night. The grinding appears to be the brain’s way of reopening the airway after a breathing pause. If you grind heavily and also snore, wake up gasping, or feel unrested in the morning, a sleep study is worth pursuing. Treating sleep apnea with a CPAP machine or oral appliance often reduces grinding significantly, sometimes eliminating the need for a separate bruxism treatment altogether.
Putting a Treatment Plan Together
Most people benefit from layering several approaches. A custom splint protects your teeth while you work on the underlying causes. Jaw exercises and stress management address the muscle tension and triggers. If those aren’t enough, Botox injections can reduce grinding intensity while you sort out deeper issues like sleep apnea or medication side effects.
The damage from untreated grinding is cumulative. Worn enamel, cracked teeth, chronic jaw pain, and recurring headaches all worsen over time. Starting with even a basic mouthguard and some awareness of your daytime clenching habits makes a real difference, and you can add more targeted treatments from there.