Dental care and oral health information you need
from the Academy of General Dentistry


Tuesday, September 02, 2014
Know Your Teeth Academy of General Dentistry Know Your Teeth

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Temporomandibular Joint Disorder

 
Chapter: What is the Temporomandibular Joint?

The temporomandibular joint (TMJ) is a joint that slides and rotates just in front of your ear, consisting of the temporal bone (side of the skull) and the mandible (lower jaw). Chewing muscles connect the lower jaw to the skull, allowing you to move your jaw forward, sideways and open and close.

 

The joint works properly when the lower jaw and its joint (both the right and left) are synchronized during movement. TMD may occur when the jaw twists during opening, closing or side-motion movements. These movements affect the jaw joint and the muscles that control chewing.

 

Updated: November 2008

 
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