Reducing a dislocated jaw means guiding the lower jawbone back into its normal position in the joint socket. This is a procedure that should be performed by a healthcare provider, not attempted at home. A dislocated jaw occurs when the rounded top of the jawbone (the condyle) slides forward past a bony ridge in the skull and gets stuck, leaving you unable to close your mouth. The fix involves specific hand placement, downward pressure, and controlled movement to guide the bone back where it belongs.
What Happens During a Jaw Dislocation
Your jaw joint sits just in front of each ear. When you open your mouth, the ball-shaped top of the jawbone slides forward along a track in the skull. Normally it glides back when you close. In a dislocation, the jawbone slides too far forward, past a bump called the articular eminence, and the surrounding muscles spasm and lock it in place.
Dislocations are classified by how far forward the jawbone has traveled. In mild cases, the bone sits directly below the tip of that bony bump. In moderate cases, it moves in front of the bump. In severe cases, it rides high up against the base of the bump. The further forward it goes, the harder it can be to guide back.
The telltale signs are obvious: you can’t close your mouth, your jaw looks crooked or lopsided, and your upper and lower teeth no longer line up. There’s usually significant pain in front of the ears and along the jaw muscles.
How the Reduction Procedure Works
The standard technique used in emergency rooms involves the provider sitting or standing in front of you and placing their thumbs on your lower back teeth (or the bony ridge behind them), with their fingers wrapped under your chin. They press downward and backward at the same time. The downward force overcomes the pull of the jaw muscles, while the backward push guides the condyle back over the bony ridge and into the socket. You’ll typically feel a noticeable “pop” when the jaw slips back into place, followed by immediate relief.
The jaw muscles are often in severe spasm by the time you reach a provider, which is the main obstacle to a smooth reduction. To relax those muscles, providers commonly use a local anesthetic injected near the joint, sedation, or both. Once the muscles release their grip, the reduction itself takes only seconds. Without adequate muscle relaxation, the procedure becomes much more difficult and painful.
Why You Shouldn’t Try This Yourself
The National Institutes of Health is direct on this point: do not try to correct the position of the jaw yourself. A provider should do this. There are several practical reasons. First, a dislocation can look and feel identical to a jaw fracture, and applying force to a fractured jaw can cause serious additional damage, including nerve injury. Only imaging can reliably tell the difference. Second, the technique requires precise direction of force. Pushing the wrong way can chip teeth, tear soft tissue, or worsen the dislocation. Third, the muscle spasm that locks the jaw in place is powerful enough that untrained attempts rarely succeed and often increase pain and swelling.
What to Expect After Reduction
Once your jaw is back in place, recovery follows a predictable timeline. Your provider may apply a supportive bandage that wraps under your chin and over the top of your head, holding the jaw gently closed. This is typically worn for two to three days to let the joint settle.
For the first several days, stick to soft foods: yogurt, soup, mashed potatoes, smoothies. Cut anything you do eat into small pieces so you don’t have to open wide. You should avoid wide jaw opening for at least one to two weeks after reduction, though some providers recommend being cautious for up to six weeks, especially if this isn’t your first dislocation.
One practical tip that makes a real difference: when you feel a yawn coming on, place your fist under your chin to physically prevent your mouth from opening too wide. Yawning is the most common way people re-dislocate in the days and weeks after treatment. Sneezing with your mouth open and biting into large foods are other common triggers to watch for.
Preventing Recurrent Dislocations
Some people dislocate their jaw once and never again. Others develop a pattern of repeated dislocations, where the joint becomes increasingly loose and unstable each time. If you’ve had more than one or two episodes, the approach to prevention becomes more involved.
Conservative strategies come first. These include physical therapy exercises to strengthen the muscles around the joint, learning to limit how far you open your mouth during eating and speaking, and wearing a stabilizing dental splint at night if you tend to open wide during sleep. Injections that temporarily weaken the overactive muscles pulling the jaw forward can also help break the cycle in some cases.
When conservative measures fail, surgical options exist. The most established procedure, first described in 1951, involves shaving down or removing the bony ridge that the jawbone gets stuck in front of. Without that obstacle, the jawbone can slide freely back into position even if it moves too far forward, essentially eliminating the “trap” that causes the locking. Other surgical approaches involve tightening the joint capsule or creating a mechanical block to prevent excessive forward movement. Surgeons generally follow a stepwise approach, starting with the least invasive option and escalating only if simpler treatments don’t hold.
Getting to the Right Provider
If your jaw is currently dislocated, go to an emergency room. This is where most acute dislocations are treated, and ER physicians perform this procedure regularly. If you’re dealing with a pattern of repeated dislocations, an oral and maxillofacial surgeon is the specialist best equipped to evaluate your joint and discuss longer-term solutions. For jaw pain or clicking without full dislocation, a dentist specializing in temporomandibular disorders can assess whether you’re at risk and recommend preventive strategies before a full dislocation occurs.