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You have had a temporomandibular joint arthroscopy (examination of the temporomandibular joint).

A joint is a movable connection between two or more bones in the body. An arthroscopy first involves making a small incision in the skin. A thin tube is advanced through this incision. There is a camera at the top of the tube. The camera transmits images of the inside of the joint to a screen. Instruments such as forceps and scissors can be inserted into the joint through other small incisions. With this kind of arthroscopy, the inside of the joint can be viewed and assessed for any changes.

The jaw consists of the upper jaw and lower jaw. The upper jaw bone is located above the mouth and forms the roof of the oral cavity. The lower jaw bone is located below and to the side of the mouth. In the center of the lower jaw is the chin. To the side, the lower jaw bone extends to below the ears. The mandibular joint is located there.