Dislocating your jaw might sound like something out of an action movie, but it’s more common—and far more uncomfortable—than most people realize.
In fact, it doesn’t always take a severe accident or blow to the face to dislocate the jaw. One of the most common causes is something far less dramatic—a big yawn. Yes, you heard correctly: a yawn.
Other surprising culprits include laughing too hard, biting into an oversized sandwich, dental procedures, or even vomiting.
Once it happens, your next question may be: What now?
A dislocated jaw can disrupt basic functions like talking, chewing, and breathing. It is a real medical issue that demands swift attention.
What Is a Dislocated Jaw?
A dislocated jaw occurs when the lower jawbone (mandible) moves out of its normal position at the temporomandibular joint (TMJ)—the hinge that connects your jaw to the skull. This misalignment can be partial (subluxation) or complete, and often results in pain, stiffness, or an inability to open or close your mouth.
Causes of Jaw Dislocation
Some dislocations happen due to trauma, but—believe it or not—many occur from everyday activities. Common causes include:
- Yawning too widely.
- Biting into large or hard foods.
- Prolonged mouth opening during dental work.
- Forceful vomiting or coughing.
- Injuries from falls, accidents, or sports.
- Underlying joint hypermobility or TMJ disorders.
AND—if you’ve dislocated your jaw before or have a history of joint instability, your risk is higher.
Symptoms of a Dislocated Jaw
If your jaw is dislocated, you may experience:
- Locked jaw (unable to open or close your mouth).
- Pain near the ears or in the jaw joint.
- Misalignment of your bite.
- Difficulty speaking or chewing.
- Popping, clicking, or grinding noises.
- Swelling or muscle spasms in the face.
These symptoms may come on suddenly and worsen with movement or attempts to “reset” the jaw yourself.
Should I Go to Urgent Care for a Dislocated Jaw?
Urgent care is a smart choice for evaluating and managing a suspected jaw dislocation when the injury IS NOT the result of major trauma.
Here at FirstCall Medical Center, we can:
- Assess your symptoms and determine whether the dislocation is partial or complete.
- Manage pain or inflammation using medications or cold therapy.
- Attempt manual repositioning of the jaw when safe and appropriate.
- Refer you to a specialist if advanced imaging or surgical evaluation is needed.
- Provide post-treatment instructions to reduce your risk of recurrence.
When to Head to the ER Instead
While urgent care is appropriate in many cases, head to the emergency room if:
- The dislocation is the result of serious trauma (e.g., car accident, fall, assault).
- There are signs of a fracture, heavy bleeding, or facial deformity.
- You’re having trouble breathing or swallowing.
- Loss of consciousness or neurological symptoms occur.
- There are signs of infection, such as high fever or pus.
To avoid a repeat incident—or your first—consider these prevention tips:
- Avoid excessive yawning or overstretching the jaw.
- Take smaller bites of food, especially hard or chewy items.
- Support your jaw during long dental visits.
- Use a night guard if you grind or clench your teeth.
- Seek treatment for TMJ disorders or joint instability.
If your jaw suddenly locks, pops, or refuses to cooperate, don’t panic—but don’t wait, either. A dislocated jaw can be painful and frustrating, but with the right care, it can be quickly resolved.
Skip the guesswork and get the help you need at FirstCall Medical Center—your trusted urgent care partner in getting things back into alignment.
