What does this mean?
A cushion called the disc sits between the bone surfaces of the jaw joint. When it slips out of place and snaps back as the mouth opens, you hear a click. On its own, the sound does not always mean disease.
If the disc does not return, it blocks the movement and the mouth stops opening past a certain point. This is locking, and the outcome is clearly better when it is addressed early.
The source of the noise and the locking is the joint itself; clenching and bite discrepancies make it worse.
Likely causes
What helps at home?
- Avoid opening the mouth to its limit or forcing it while yawning
- Eat soft food for a while; cut back on hard, chewy items
- A warm compress and resting the jaw give clear relief in most cases
- The jaw locking open or closed
- A sudden reduction in how far the mouth opens
- Pain and difficulty chewing alongside the noise
- Numbness or altered sensation in the face
Frequently asked questions
- My jaw clicks but doesn't hurt; do I need treatment?
- Without pain or loss of function it is usually monitored. The sound alone is not a reason to intervene.
- Does locking resolve by itself?
- Sometimes it does, but it tends to recur. Repeated locking should be assessed; the response is far better early on.
This content is for general information and does not replace an in-person examination. Symptoms overlap between conditions, and a diagnosis can only be made clinically.