Temporomandibular joint disorder—also called TMJ disorder or TMD—describes a group of conditions that affect the muscles in your jaw. The temporomandibular joint is the main cause of pain in these cases. These joints connect the lower jaw (mandible) to the skull. Located on each side of your head, these joints work together, so you can do simple, everyday things like chewing your food, speaking to a friend, or swallowing your favorite drink. Keep reading to learn more about options for TMJ treatment from our Schaumburg, IL dentist.