What causes an aching jaw?

According to experts, millions of Americans suffer from headaches, earaches, jaw tenderness or dull aching facial pain caused by problems with the alignment of the joints in their jaw.

Jaw pain can be brought on by a variety of causes, including clenching or grinding of the teeth, head injuries and even arthritis. These problems are called "TMD," which is short for "temporomandibular joint disorders."

The American Dental Association has more information about what happens when the joints in your jaw and your chewing muscles aren't working together properly. Click on this link to their Internet site: