The fastest way to relax a tense jaw is to place your tongue on the roof of your mouth, let your lips close gently, and allow your teeth to separate slightly. This simple position, sometimes called the “N” position because your tongue sits where it would if you were saying the letter N, immediately reduces tension in the muscles that clench your jaw. From there, a combination of self-massage, temperature therapy, and habit changes can bring lasting relief.
The Resting Position Your Jaw Should Be In
Most people with TMJ tension don’t realize their jaw is clenched until the pain gets bad. The default resting position of a healthy jaw is teeth apart, lips lightly touching, and the tip of the tongue resting against the front of the roof of the mouth, just behind the upper teeth. Your upper and lower teeth should never be in contact unless you’re chewing food.
To find this position, say the letter “N” and freeze. That’s where your tongue belongs at rest. The tongue gently presses into the palate, which signals the jaw muscles to release. Practice checking in with yourself every hour or so. If your teeth are touching or your jaw feels tight, reset to the N position. Over days and weeks, this becomes automatic, and it’s one of the most effective long-term strategies for reducing TMJ-related muscle tension.
Self-Massage for Jaw Muscles
The two muscle groups most responsible for jaw clenching are the masseters (the thick muscles on the sides of your jaw that you can feel when you bite down) and the temporalis muscles (which fan across your temples). Both respond well to direct pressure.
To release the masseters, place your fingertips on the sides of your jaw, about an inch in front of your earlobes. Clench lightly so you can feel the muscle bulge, then relax. Apply steady, moderate pressure with your fingertips and make small circular motions. Work your way down the muscle from just below the cheekbone to the angle of the jaw. Spend about 30 to 60 seconds on each side, and don’t press hard enough to cause sharp pain. A deep, achy sensation is normal and usually means you’ve found a tight spot.
For the temporalis, place your fingertips on your temples and use the same slow circular pressure, working upward and slightly backward. You may notice that one side is significantly tighter than the other, which is common. Doing this massage two or three times a day, especially before bed, can noticeably reduce tension within a week.
Heat and Cold: Which One to Use
Temperature therapy works well for TMJ pain, but the choice between heat and cold depends on the type of pain you’re feeling. For a dull, steady ache or chronic tightness, moist heat is the better option. Soak a washcloth in warm water, wring it out, and hold it against the side of your jaw for about 20 minutes. The warmth increases blood flow and helps the muscles soften. A warm shower directed at the jaw works too.
For sharp, acute pain or a flare-up where the joint itself feels inflamed, cold packs are more effective. Wrap an ice pack in a thin towel and hold it against the painful side for 10 to 15 minutes, but no longer than 20 minutes to avoid skin damage. You can repeat cold application every two hours as needed. Some people alternate between heat and cold during a bad flare, starting with cold to calm inflammation and finishing with heat to relax the muscle.
Progressive Muscle Relaxation for the Jaw
People who clench their jaws often carry tension without realizing it. Progressive muscle relaxation (PMR) trains you to notice the difference between a tense jaw and a relaxed one. The technique, widely used in pain management and recommended by the U.S. Department of Veterans Affairs for stress-related tension, involves deliberately tightening the muscles before releasing them.
Here’s how to do it for your jaw and face: squeeze your eyes tight, clench your jaw firmly, and wrinkle your forehead and nose. Hold that tension for five to ten seconds while taking a deep breath into your belly. Then exhale slowly and let everything go at once. Feel your forehead smooth out, your cheeks soften, your jaw drop open slightly. Let your lips part and your jaw hang completely loose. The contrast between the clench and the release teaches your nervous system what “relaxed” actually feels like in those muscles. Doing this once or twice a day, particularly before sleep, helps break the cycle of unconscious clenching.
How Your Sleep Position Affects TMJ
Sleeping on your back is the best position for TMJ pain. It keeps your head, neck, and spine aligned and avoids putting any direct pressure on the jaw joint. If you’re a back sleeper, a contoured or memory foam pillow helps prevent your head from tilting forward or to the side, which can pull the jaw out of alignment overnight.
Side sleeping can be a problem, especially if you tuck your hand under your jaw or press your face into the pillow. That sustained pressure on one side of the joint for hours creates inflammation and stiffness by morning. If you can’t switch to back sleeping, at least avoid resting your hand against your jaw and use a supportive pillow that keeps your neck straight rather than kinked.
Stomach sleeping is the worst option. It forces your head to turn to one side, twisting the neck and jaw out of alignment, while your jaw presses directly into the pillow. If you regularly wake up with jaw pain and sleep on your stomach, this is likely a major contributor.
Daytime Habits That Make Clenching Worse
Jaw tension doesn’t happen only at night. Several common habits keep the muscles overworked throughout the day. Chewing gum is one of the biggest offenders because it keeps the masseters contracting repetitively for extended periods. Biting your nails, chewing on pen caps, or holding your phone between your ear and shoulder all add strain to the joint.
Posture matters more than most people expect. When your head juts forward (the typical posture of someone hunched over a laptop), the muscles at the back of the neck shorten, which pulls the jaw backward and forces the chewing muscles to compensate. Sitting upright with your ears stacked over your shoulders takes mechanical stress off the jaw. If you work at a desk, adjusting your screen to eye level can make a real difference over time.
Stress is the other major driver. Most people clench harder during periods of anxiety, concentration, or frustration. Setting periodic reminders on your phone to check your jaw position throughout the workday can interrupt the clenching pattern before the muscles fatigue and start hurting.
Stretches That Improve Jaw Mobility
Gentle stretching helps restore range of motion in a stiff TMJ. The simplest stretch is a controlled opening exercise: place the tip of your tongue on the roof of your mouth (the N position), then slowly open your jaw as far as you can while keeping your tongue in contact with the palate. This prevents the jaw from shifting to one side during the stretch. Hold the open position for five seconds, then close slowly. Repeat five to ten times.
For lateral mobility, place your thumb under your chin and gently press downward while you try to open your mouth, creating light resistance. Hold for five seconds. Then place your thumb on the right side of your lower jaw and gently push while your jaw resists. Repeat on the left. These resistance exercises strengthen the smaller stabilizing muscles around the joint and reduce the tendency for the jaw to click or pop during opening.
When Home Methods Aren’t Enough
If self-care strategies bring partial relief but you’re still dealing with significant pain, stiffness, or locking, there are professional options. A custom-fitted oral splint (night guard) from a dentist keeps the teeth slightly separated during sleep and prevents the grinding that damages the joint over time. Over-the-counter night guards are available but don’t fit as precisely and can sometimes make bite problems worse.
For people with severe clenching, injections that temporarily weaken the masseter muscle can provide substantial relief. A typical treatment involves 25 to 40 units per side, and the effects last roughly six to nine months before the muscle gradually regains full strength. This approach is especially useful for people whose masseters have visibly enlarged from chronic clenching.
Physical therapy focused on the TMJ is another effective route. A therapist can identify whether your pain is primarily muscular, joint-related, or both, and tailor exercises and manual techniques accordingly. Many people with chronic TMJ issues find that a combination of professional treatment and consistent home care produces the best results.