Skip to content

    Women's Health

    Font Size
    A
    A
    A

    Mysteries of TMD

    Biting Pain

    Many causes, many symptoms

    The most common symptom of TMD is pain in the jaw joint or the muscles when chewing, according to the NIH's National Institute of Dental Research. Other symptoms include clicking, popping, or grating sounds in the jaw when opening or closing the mouth, or a change in the way the upper and lower teeth fit together. TMD patients also may suffer limited movement or locking of the jaw, headaches, earaches, dizziness, or ringing in the ears.

    But because TMD includes so many different conditions, its causes vary widely and in most cases are simply unknown. "TMD is really a garbage term," says David Cottrell, MD, associate professor and director of the Oral Maxofacial Residency Program at Boston University Medical School. "It could be one of 15 different things. In most cases, we don't know the exact cause." Nor do researchers know why the disorder strikes women far more frequently than men. Hormones may play a role because patients often report improvement during pregnancy, explains Cottrell.

    Rheumatoid arthritis and Lyme disease also can cause TMD because these diseases affect joints. So can psoriasis, a chronic skin disorder that can have several components, such as scaly patches, but also may cause arthritis. Trauma, such as the car accident that injured Zee, is another culprit, although Zee says she believes undiagnosed arthritis already had weakened her jaw and the blow she received "finished off" the disc.

    Oftentimes, stress is to blame, as along with stress come such habits as teeth grinding and jaw clenching. And in a recent study, poor posture seemed to be at the root of the problem. An Air Force study published in the February 2000 issue of the Journal of the American Dental Association showed that posture training reduced symptoms by 42% in a group of patients who had suffered for at least six months from TMD.

    Treat with caution

    While causes of TMD remain elusive, most TMD sufferers can find some relief in any number of treatments. Cottrell estimates that more than 80% of his patients recover on their own once they understand the problem and are careful about what they eat and how they open their mouths. Ten percent find relief by wearing a plastic mouth guard during the night that prevents jaw clenching or teeth grinding during sleep.

    Today on WebMD

    hands on abdomen
    Test your knowledge.
    womans hand on abdomen
    Are you ready for baby?
     
    birth control pills
    Learn about your options.
    insomnia
    Is it menopause or something else?
     
    woman in bathtub
    Slideshow
    period
    VIDEO
     
    bp app on smartwatch and phone
    Slideshow
    estrogen gene
    Quiz
     

    Send yourself a link to download the app.

    Loading ...

    Please wait...

    This feature is temporarily unavailable. Please try again later.

    Thanks!

    Now check your email account on your mobile phone to download your new app.

    Blood pressure check
    Slideshow
    hot water bottle on stomach
    Quiz
     
    question
    Assessment
    Attractive young woman standing in front of mirror
    Quiz