TMJ- this stands for Tempero-mandibular joint. This joint is just in front of your ear and connects your lower jaw to your upper jaw and is the most complex joint in the body. I believe that it should also stand for Teeth, Muscles, Joint as these structures are interdependent. In some people, closing the teeth together can cause their jaw joints to displace. Over a period of time this can either cause their joints to click, tooth wear or sore muscles (leading to headaches) or all three! You may not have any symptoms but early signs of TMJ problems can be picked up during a dental examination before a problem arises- remember that prevention is better than cure! If you are concerned about any of these issues then we can help.