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
Teeth clenching — clinically known as bruxism — can be reduced through a combination of jaw relaxation exercises, thermotherapy, stress management, and the use of an anterior bite guard. Identifying the underlying triggers, which can include certain medications, anxiety, and sleep disorders, is the critical first step. When addressed early, most people find meaningful relief through targeted self-care strategies before more invasive treatment becomes necessary.
Teeth clenching is a form of bruxism. Bruxism is defined as the tonic or phasic activation of the jaw muscles, such that there is repetitive or sustained teeth contact. Tonic activation describes a state in which the jaw is stationary while the muscles remain under constant tension. Phasic activation involves rhythmic muscle contractions — the pattern seen in classic teeth grinding and jaw clenching. Bruxism can occur during sleep or while you are awake, and both types place significant mechanical load on the masticatory muscles and the temporomandibular joint.
Identifying the cause of your teeth clenching is an important clue for getting relief. Common causes include:
Teeth clenching needs to be taken seriously. If muscle fatigue, jaw pain, and tension headaches go untreated, the neurons in the brain become hyperexcitable. Soon, even normal sensations from the jaw region can begin to register as pain — a process called central sensitization — which is a hallmark of chronic TMJ pain disorders. A 2024 review published in Frontiers in Neurology confirms that bruxism has a complex neurological basis with direct implications for pain sensitization, reinforcing the importance of early intervention. You can learn more about how this cascade develops in our resource on whether bruxism can cause headaches.
Now that we have reviewed the common causes of teeth clenching, here are five practical strategies to address it.
There are several medications that cause teeth clenching. Here is a list of the most notable offenders:
Do not stop taking medications on your own. Instead, alert your health care provider about your teeth clenching symptoms. Often there are alternative medications that will not have the same effect. Our dedicated article on why SSRIs cause jaw clenching explains the neurological mechanism in more detail and what to discuss with your prescribing clinician.
As for nicotine and caffeine, you should probably quit those altogether.
Jaw relaxation can be achieved with gentle positional exercises, starting with the “mouth resting position.” This is where the lips gently touch, the teeth are lightly together without force, and the tongue is held in the “N” position — just above and behind your front teeth. Simply becoming mindful of maintaining this resting mouth position throughout the day can significantly reduce unconscious clenching episodes.
A more active application of the “N” position can also help: actively press the tongue against the roof of the mouth. Many people feel immediate relief from fatigued jaw muscles with this technique alone. For a structured program, Jaw RxErcises offer a set of guided exercises designed to reduce jaw pain and reset the neural pathways responsible for jaw tension, allowing the jaw to return to a comfortable resting state. You can find additional step-by-step techniques in our guide on how to relax a tense jaw.
Thermotherapy — the therapeutic use of heat to restore function — increases jaw muscle extensibility and flexibility, which facilitates improved jaw range of motion and provides meaningful comfort. Heat is a practical way to interrupt the guarding cycle that often perpetuates clenching.
“Often, jaw clenching is a guarding reflex in response to pain or fatigue. By using heat to relax the jaw and restore the normal range of motion, the cycle of guarding and clenching can be interrupted,” explains Bradley Eli, DMD, MS, an orofacial pain specialist.
Applying moist heat to the jaw and temple region for 15–20 minutes is generally well tolerated and can provide rapid symptomatic relief between other treatments. For guidance on when to use heat versus cold, see our article on ice or heat for TMJ pain.
Most mouth guards marketed for bruxism are designed to protect the teeth from wear — they do not actively stop clenching. In contrast, anterior bite guards are specifically designed to interrupt the clenching reflex at its source.
Anterior bite mouth guards are custom-fit to the front teeth, leaving the back molars uncovered. This design prevents the molars from fully contacting each other, which delivers jaw clenching relief and immediate comfort. Anterior bite guards — like the QuickSplint® — are sometimes called “anterior deprogrammers” because they act to stop the “programmed” guarding reflex of the jaw. The neural pathways driving the clenching reflex are, in effect, deprogrammed so that the normal harmony between the jaw joint and muscles can be restored. Learn more about how these compare to conventional appliances in our article on the best mouth guard for jaw clenching.
There is a well-established relationship between stress and jaw clenching. Research published in the Journal of Oral Rehabilitation in 2026 found that patients with elevated anxiety demonstrated significantly higher frequencies of awake bruxism — specifically tooth clenching — along with greater psychological distress and pain intensity. This makes stress reduction a primary intervention, not an afterthought. The connection between anxiety and jaw clenching is close enough that addressing psychological health often produces measurable changes in bruxism behavior.
There are many practical ways to de-stress. What matters most is choosing a few approaches and being deliberate about applying them daily. Common methods include:
You can easily come up with ideas of your own — just don’t stress out about de-stressing.
If your teeth clenching is causing jaw pain, it is important to take it seriously. We have developed the Speed2Treat Home Healing Kit as a comprehensive resource for people dealing with jaw pain. It includes the QuickSplint®, a custom anterior bite guard that can be molded and worn on the same day of delivery.
Also included are a neoprene jaw wrap with reusable hot and cold packs, a symptom tracker, physical therapy exercises, and access to pain management videos by world-renowned TMJ pain experts. Start your journey toward jaw pain relief today with the Speed2Treat® Home Healing Kit.
Not all self-care strategies for bruxism are created equal. Knowing the difference between approaches that provide genuine relief and those that can make the problem worse is essential for long-term recovery.
Daytime clenching (awake bruxism) responds well to awareness-based techniques, starting with the jaw resting position — lips lightly closed, teeth apart, tongue resting on the roof of the mouth just behind the front teeth. An anterior bite guard worn during waking hours can also interrupt the reflex. Addressing underlying stress and reviewing any medications known to cause bruxism with your doctor are equally important steps.
Teeth clenching is largely a subconscious, habitual behavior driven by neural pathways that have been conditioned over time. It often emerges as a guarding reflex in response to stress, jaw pain, or fatigue. Because it occurs below the level of conscious awareness, many people do not notice they are clenching until they experience jaw soreness, headaches, or tooth sensitivity.
Yes — the link between stress, anxiety, and jaw clenching is well documented. Psychological stress increases muscle tone throughout the cranio-cervical region and promotes parafunctional behaviors like bruxism. Awake bruxism in particular shows a strong association with elevated anxiety and psychological distress, making stress management a central part of any treatment plan.
An anterior bite guard (also called an anterior deprogrammer) is the appliance of choice for stopping teeth clenching. Unlike standard full-arch night guards that only protect teeth, anterior bite guards are designed to deactivate the clenching reflex by preventing molar contact. The QuickSplint® is an over-the-counter anterior bite guard that can be custom-molded at home on the day of delivery.
Yes. Chronic jaw clenching overloads the masticatory muscles — particularly the temporalis and masseter — which refer pain into the temples, forehead, and behind the eyes. This can produce tension-type headaches and, in susceptible individuals, can trigger or worsen migraine. Central sensitization from untreated bruxism can make these headaches more frequent and more difficult to treat over time.
Teeth clenching is one type of bruxism. Bruxism is the broader clinical term encompassing both clenching (sustained jaw muscle contraction without tooth movement) and grinding (lateral rhythmic movements that wear tooth surfaces). Both forms can occur during sleep or while awake, and both can cause significant jaw pain, headaches, and long-term damage to the teeth and temporomandibular joint if left untreated.
