TMJ and Tooth Grinding
Pain or dysfunction of the hinging joints of the jaw is commonly referred to as "TMJ". TMJ is actually the abbreviation of the joint, and Temporomandibular Joint Disorder is the term used to label problems involving the TMJ and the muscles, tendons, ligaments, blood vessels, and other tissues.
TMJ can result in abnormal wear patterns of the in the teeth. Over time, dental damage will usually occur. TMJ is the leading cause of tooth enamel damage and a significant cause of tooth loss and gum recession. People with TMJ may also grind their back teeth, which will wear down the cusps of the occlusal surface. TMJ can be loud enough to wake a sleeping partner. Some individuals will clench the jaw without significant lateral movements. Teeth hollowed by previous decay or dental drilling, may collapse, as the cyclic pressure exerted by TMJ is extremely taxing on the tooth structure.
TMJ Symptoms Patients may present with a variety of symptoms, including:
- Anxiety
- Stress or Tension
- Depression
- Earache
- Eating Disorders
- Insomnia
- Headache
- Jaw Pain
Eventually, TMJ shortens and blunts the teeth being ground, and may lead to myofacial muscle pain and headaches. In severe, chronic cases, it can lead to arthritis of the temporomandibular joints. The jaw clenching that often accompanies TMJ can be an unconscious neuromuscular daytime activity, which should be treated as well.