Disc displacement with reduction is also another common form of TMD that results in the articular disc moving forward too soon. This slight displacement of the articular disc often causes a popping sound as the jawbone clicks back into the correct place along the articular disc while opening the mouth. Disc displacement without reduction occurs when the articular disc has slipped forward and there is no cushioning between the jawbone and temporal bone. In some cases, the articular disc may slip too far out of place and result in a closed lock where the jaw is unable to be opened fully or properly. As additional strain is placed on the TMJ, degeneration of the articular disc may occur. Without proper treatment for TMJ disorders, these symptoms often worsen. Fortunately, TMJ treatments can help treat these symptoms and restore jaw functionality.
What are the symptoms of TMD?
There are a variety of symptoms that may occur with TMD, which will vary depending on the particular dysfunction you are experiencing with your TMJ. Patients suffering from TMD may experience headaches, worn teeth, tenderness in the face, neck, shoulders, or area of the jaw, a clicking or popping sensation while opening the mouth or chewing, and pain behind the eyes. Additional symptoms include ringing in the ears, the inability to open the mouth, and the inability to close the mouth. TMD often causes difficulty when performing daily activities, such as eating, chewing, speaking, or yawning.
What causes TMD?
One of the most common causes of TMD is an injury or trauma to the TMJ or the surrounding muscles that help operate the joint. When these muscles or ligaments are compromised, the articular disc of the TMJ often slips, degenerates, or becomes stuck, resulting in TMD symptoms. TMD may also develop in patients with anxiety who often clench their jaw or grind their teeth when they are nervous. Another common cause for TMD is a misaligned bite. When you have missing or crooked teeth, you may be unable to properly bite down. This results in your overall bite becoming misaligned, causing strain in your TMJ and the development of TMD.