Temporomandibular Joint
TMJ stands for temporomandibular joint. Everyone has a right TM joint and a left TM joint. TMD stands for temporomandibular dysfunction. Temporomandibular disorders occur as a result of problems with the jaw, jaw joint, and surrounding facial muscles that control chewing and jaw movement. These disorders are often incorrectly called TMJ, for temporomandibular joint. The “Temporomandibular Joint,” more commonly referred to as the “jaw joint,” assists in the basic opening and closing movements of the jaw. TMD is a dysfunction of the temporomandibular joint.