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Related Topic: NTL/Splint

What is TMJ?


TMJ disorders include a variety of conditions that cause tenderness and pain in the temporomandibular joint (TMJ). Your TMJ is the ball-and-socket joint on each side of your head where your lower jawbone (mandible) joins the temporal bone of your skull.

The lower jaw has rounded ends (condyles) that glide in and out of the joint socket when you talk, chew or yawn. The surfaces of the condyle and the socket of the temporal bone are covered with cartilage and separated by a small disk, which absorbs shock and keeps the movement smooth. The muscles that enable you to open and close your mouth stabilize this joint.

In most cases, pain and discomfort associated with TMJ disorders can be alleviated with self-managed care or nonsurgical treatments, but more severe cases may need to be treated with dental or surgical interventions