How can bruxism cause headaches? Bruxism causes morning, tension, and migraine headaches via jaw muscle fatigue and trigeminal sensitization. Learn the types, triggers, and relief options.
Written by Ann C. McCulloch, MBA | Medically Reviewed by Bradley Allen Eli, DMD, MS
No single treatment eliminates nighttime teeth clenching entirely. The most effective approach combines addressing what’s driving it — stress, sleep quality, or certain medications — with tools that protect your teeth and calm the jaw muscles while those underlying factors are being worked out. It’s also worth knowing that sleep clenching doesn’t always need treatment; it’s typically addressed only when it’s causing tooth damage, pain, or disrupted sleep. (If daytime clenching is more your concern, see how to stop clenching your jaw for strategies specific to awake clenching.)
Before reaching for a night guard, it’s worth considering what might actually be causing the clenching in the first place — because a mouthguard alone won’t resolve any of these underlying drivers.
Occlusal splints, more commonly known as night guards, remain the most frequently recommended intervention for nighttime clenching, and for good reason: they’re effective at protecting teeth from the wear and damage that clenching causes. What’s less certain is whether they actually reduce the clenching behavior itself — the evidence on that point is mixed. A few practical notes worth knowing:
Several non-appliance approaches have research support:
“The goal of treating nighttime jaw clenching is not simply to stop the movement, but to prevent the damage it causes while addressing the factors that are driving it. This often requires a combination of oral appliances, sleep evaluation, medication review, and management of contributing medical conditions,” explains Bradley Eli, DMD, MS, an orofacial pain specialist.
For cases that don’t respond to the steps above, botulinum toxin injections into the jaw muscles are a reasonable option to discuss with a specialist. A systematic review of randomized controlled trials found meaningful reductions in pain and improvements in jaw function among patients treated with botulinum toxin for sleep bruxism, and separate clinical research has shown sustained improvements in sleep quality lasting several months after treatment. This remains a decision to make in partnership with an orofacial pain specialist, since it involves its own considerations around timing, dosing, and monitoring.
It’s worth drawing a distinction here: a standard night guard is designed primarily to protect your teeth from wear, which is valuable but doesn’t directly address jaw muscle tension. QuickSplint®, the anterior bite guard included in the Speed2Treat® Home Healing Kit, works differently — rather than just creating a barrier between the teeth, it’s designed to promote jaw muscle relaxation as part of short-term treatment for acute jaw pain and muscle guarding. This makes it a useful tool specifically when clenching has led to jaw muscle pain or tension, and the kit pairs it with a hot/cold therapy wrap and guided jaw exercises, working alongside — not replacing — the steps above that address what’s driving the clenching in the first place.
Jaw rest during waking hours and heat therapy before bed can also help calm jaw muscle tension that’s built up from nighttime clenching.
A night guard is very effective at protecting your teeth from the damage clenching causes, but the evidence on whether it actually reduces the clenching behavior itself is mixed. It works best as one part of a broader approach.
Not necessarily. A standard occlusal splint can potentially worsen sleep apnea in some patients, so a mandibular advancement device is generally the preferred choice when sleep apnea and clenching occur together.
A standard night guard primarily protects teeth from wear. An anterior bite splint is designed to promote jaw muscle relaxation, making it more suited to short-term treatment of acute jaw pain and muscle tension caused by clenching.
Yes. Certain medications, including several antidepressants, are associated with an increased risk of bruxism. If clenching started after a medication change, discuss it with your prescribing doctor rather than adjusting the medication yourself.
It can be a reasonable option for cases that don’t respond to conservative measures like night guards, sleep hygiene, and stress management. Research supports meaningful reductions in pain and improved jaw function, but it’s a decision best made with an orofacial pain specialist.
Not necessarily. Sleep clenching is generally treated only when it’s causing tooth damage, jaw pain, or disrupted sleep — not simply because it’s occurring.
