A truly dislocated jaw is a medical emergency and should not be popped back into place at home. If your jaw is locked open, you can’t close your mouth, and you’re drooling or unable to speak clearly, the jaw bone has likely slipped completely out of its joint socket. This requires professional reduction by a doctor or oral surgeon, not a DIY fix. What many people experience, though, is a partial slip (subluxation) or a clicking, catching sensation that feels “off” but isn’t a full dislocation. Knowing the difference matters, because the right response depends entirely on what’s actually happening in the joint.
Full Dislocation vs. Partial Slip
Your jaw joint (the TMJ) works like a hinge-and-slide mechanism on each side of your face, just in front of your ears. A full dislocation happens when the ball of the joint slides forward past a bony ridge and gets stuck there, unable to slide back. A partial slip, or subluxation, means the ball moves too far forward but can still return on its own or with gentle coaxing.
The signs of a full dislocation are hard to miss. Your mouth locks in an open position and you physically cannot close it. You’ll likely drool because your lips can’t seal, speaking becomes difficult, and you may feel a hollow or empty space when you press the area just in front of your ear. Pain in that pre-ear region is common with a first-time dislocation, though people who dislocate repeatedly sometimes feel less pain. If the dislocation is on one side only, your chin may visibly shift toward the opposite side.
A subluxation feels different. Your jaw may click, pop, or momentarily catch when you open wide, but it returns to position. You can still close your mouth, even if it feels stiff or uncomfortable. This is far more common than a true dislocation and is usually a TMJ disorder rather than an emergency.
Why You Shouldn’t Reduce It Yourself
The technique doctors use to relocate a dislocated jaw involves pressing firmly downward and backward on the lower molars to guide the bone back over the ridge it’s stuck on. It sounds simple, but the risks of doing this incorrectly are real. Applying force at the wrong angle can fracture the jawbone, displace an existing fracture you didn’t know about, or tear the cartilage disc inside the joint. A jaw fracture from a failed attempt may not even be obvious right away. The pain from the fracture can be masked by the pain of the dislocation itself, and it may only become apparent after the joint is back in place.
Doctors also sometimes need muscle relaxants or local anesthesia to release the jaw muscles before attempting reduction. When the joint is dislocated, the surrounding muscles often spasm and lock the bone in its displaced position. Trying to force the jaw back against that muscle tension increases the chance of injury.
What to Do Right Now
If your jaw is locked open and you cannot close your mouth, go to an emergency room. While getting there, keep your jaw as still as possible. Don’t try to force it shut, and avoid opening wider. If you have a scarf or bandage, you can wrap it gently in a figure-eight pattern around your head and under your chin to support the jaw and limit movement during transport. This won’t fix anything, but it reduces the chance of the joint shifting further.
If your jaw is clicking, popping, or feels like it briefly slipped but went back on its own, that’s not an emergency. Apply a warm compress to the joint area for 10 to 15 minutes, eat only soft foods, and avoid opening your mouth wide (no big yawns, no biting into apples). These steps reduce irritation and give the joint time to settle.
What Happens at the Hospital
A doctor will first confirm the dislocation with a physical exam and possibly an X-ray to rule out fractures. For the reduction itself, you’ll be seated upright. The doctor wraps their thumbs in gauze, places them on your lower back teeth, and applies steady downward and backward pressure while their fingers guide the outside of your jaw. You’ll typically feel a distinct pop or shift as the bone slides back into the socket, followed by immediate relief.
If the muscles are too tense, you may receive a sedative or a local anesthetic injection into the joint area first. The entire procedure usually takes only a few minutes once the muscles relax. Afterward, the doctor may apply a supportive bandage around your head and jaw for two to three days to keep the joint stable while the surrounding tissues recover.
Recovery After Reduction
The first three days after a jaw reduction tend to be the hardest. Swelling peaks around 72 hours, and the joint area will feel sore and stiff. Sleeping with your head elevated, using a neck pillow for support, helps manage swelling. Stick to soft or pureed foods for the first week or two. Anything you’d normally need to chew aggressively is off the table.
By the second week, most people feel significantly more comfortable. At that point, you can begin gently practicing opening and closing your mouth in front of a mirror, about 10 repetitions in the morning and evening, to restore range of motion without overdoing it. The goal is gradual return to normal jaw function, not pushing through pain.
Preventing It From Happening Again
Once a jaw dislocates, the ligaments around the joint are stretched, which makes future dislocations more likely. Some practical steps help reduce that risk. Avoid opening your mouth extremely wide, including during yawning (press your fist under your chin to limit how far it drops). Be cautious during dental visits and let your dentist know about your history so they can use a bite block and take breaks.
Strengthening the muscles around the joint also helps stabilize it. A simple exercise involves placing your index finger on your lower front teeth and your thumb on your upper teeth, then gently applying a spreading motion with light pressure. Done three times a day for about 10 minutes each session, this gradually improves the joint’s range of motion and muscle control. The target is being able to fit three fingers stacked between your upper and lower front teeth without pain.
When Recurrent Dislocation Needs Surgery
For some people, the jaw dislocates every time they open their mouth wide, whether eating, speaking, or even smiling. When conservative approaches like exercises, bite guards, and behavioral changes fail to prevent repeat episodes, surgery becomes the remaining option. Several procedures exist depending on the severity. One common approach involves placing a small bone graft or implant on the bony ridge of the joint to create a higher barrier that prevents the jaw from slipping forward. Another tightens the joint capsule (the ligament “sleeve” around the joint) to restrict excessive movement.
More aggressive procedures, like reshaping the jaw bone itself, carry higher risks including facial asymmetry and permanent limits on jaw movement. These are reserved for severe cases where simpler surgical options haven’t worked. The decision to pursue surgery typically comes after repeated dislocations that interfere with basic daily functions like eating and speaking, confirmed by imaging that shows the joint slipping out of place with routine mouth opening.