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Jaw Locking and Limited Opening

A Serious Symptom of a TMJ Disorder

Jaw locking is a distressing symptom where you are unable to fully open or close your mouth. It's a clear sign of a problem within the temporomandibular joint and requires prompt professional attention.

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What Causes the Jaw to Lock?

  • Disc Displacement Without Reduction: This is the most common cause. The cartilage disc inside the joint slips forward and gets stuck, physically blocking the jaw from opening or closing properly.
  • Muscle Spasm: Severe spasm of the chewing muscles (trismus) can also severely limit your ability to open your mouth.
  • Arthritis: Advanced arthritic changes can interfere with the smooth movement of the joint.

Jaw Locking FAQs

Is Your Jaw Locking or Stuck?
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