{"id":1542,"date":"2022-10-11T15:12:47","date_gmt":"2022-10-11T21:12:47","guid":{"rendered":"https:\/\/rockymountainearcenter.fm1.dev\/?page_id=1542"},"modified":"2023-04-03T13:26:40","modified_gmt":"2023-04-03T19:26:40","slug":"tmj","status":"publish","type":"page","link":"https:\/\/rockymountainearcenter.com\/ear-problems\/tmj\/","title":{"rendered":"TMJ"},"content":{"rendered":"\n

You may not have heard of it, but you use it hundreds of times every day. It is the Temporo-Mandibular Joint (TMJ), where the mandible (lower jaw) joins the temporal bone of the skull, immediately in front of the ears on each side of your head. A small disc of cartilage separates the bones, much like in the knee joint, so that the mandible may slide easily; each time you chew you move it. But you also move it every time you talk and each time you swallow (every three minutes or so). It is, therefore, one of the most frequently used of all joints in the body, and one of the most complex.<\/p>\n\n\n\n

You can locate this joint by putting your finger on the triangular structure in front of your ear. Then move your finger just slightly forward and press firmly while you open your jaw all the way and shut it. The motion you feel is the TMJ. You can also feel the joint motion in your ear canal.<\/p>\n\n\n\n

These maneuvers can cause considerable discomfort to a patient who is having TMJ trouble, and physicians use these movements to help with diagnosis.<\/p>\n\n\n\n

How Does TMJ Work?<\/h2>\n\n\n
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When you bite down hard, you put force on the object between your teeth and on the joint. In terms of physics, the jaw is the lever and the TMJ is the fulcrum. Actually, more force is applied (per square foot) to the joint surface than to whatever is between your teeth. To accommodate such forces and to prevent too much wear and tear, the cartilage between the mandible and skull normally provides a smooth surface over which the joint can freely slide with minimal friction.<\/p>\n\n\n\n

Therefore, the forces of chewing can be distributed over a wider surface in the joint space and minimize the risk of injury. In addition, several muscles contribute to opening and closing the jaw and aid in the function of the TMJ.<\/p>\n\n\n\n

Symptoms include:<\/p>\n\n\n\n