TMD-Temporomandibular disorders

If you experience ongoing pain in the area near your ear, your jaw or the muscles on the side of your face, possibly accompanied by a clicking or popping sound or restricted jaw movement, you may be suffering from TMD — an abbreviation for Temporomandibular disorders. Sometimes people incorrectly use the term TMJ to refer to these problems, when in fact TMJ is the abbreviation for the temporomandibular joint — or jaw joint — itself. So while you definitely have a TMJ (two of them in fact), you may or may not have TMD.