There are over 200 bones in the human body, and the head and face account for 22 of these. Of the face and head bones, the lower jawbone—or mandible—is the only one that can move. The mandible is connected to the temporal bone of the skull at two points just in front of each ear through an important joint called the temporomandibular joint. This joint gets lots of attention not only because it allows us to move our jaw in order to talk and chew food, but also because it’s a common location for pain.
A temporomandibular disorder (TMD) is essentially any condition in which the temporomandibular joint is not functioning properly. These types of issues are quite common, as they affect millions of Americans every year and can strike at any age. Symptoms vary from patient to patient, but in most cases they lead to pain and discomfort in the jaw and surrounding facial muscles which can make it difficult to perform any actions that require opening or closing the mouth.
It’s not entirely clear what causes TMDs, but several factors may be responsible, including injury to the jaw, repeated clenching or grinding of the teeth, high stress levels, muscle spasms, and arthritis. This uncertainty, combined with the fact that we need to use our jaws constantly, might lead you to believe that there’s not much that can be done to avoid a TMD. Fortunately this is not the case, as there are several steps you can take to reduce your risk for TMDs. We recommend the following strategies: