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temporomandibular (tm) joints

the temporomandibular (tm) joints join the skull and lower jawbone (mandible). these gliding "ball and socket" joints are separated by a disc made of cartilage, which keeps the two bones from rubbing together.

these joints are located just in front of each ear. they move when a person opens and closes the mouth.

the tm joints are stabilized by muscles that attach directly to the jawbone. if these muscles are strained or tense, jaw pain may result.

sometimes tm joint problems result when the cartilage disc tears or moves out of its normal position (disc displacement).

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this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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