TMJ (Temporomandibular joint) disorders are a family of problems related to your jaw joint, which lies just in front of your ear canal. If you have had symptoms like pain or a "clicking" sound, you'll be glad to know that these problems are more easily diagnosed and treated than they were in the past. These symptoms occur when the joints of the jaw and the chewing muscles (muscles of mastication) do not work together correctly. TMJ stands for temporomandibular joint, which is the name for each joint (right and left) that connects your lower jaw to your skull. Since some types of TMJ problems can lead to more serious conditions, early detection and treatment are important.