TMJ is short for temporomandibular joint. When a collection of symptoms that cause discomfort occur, a condition known as TMD, or temporomandibular dysfunction, develops.
Symptoms of TMD can include, but are not limited to, facial muscle pain or discomfort, clicking of the jaw joint(s), frequent headaches, earaches, dizziness, difficulty opening or chewing, pain inside the jaw joint, and broken or cracked teeth.
Symptoms can be related to a mis-aligned bite, a jaw alignment problem, a parafunctional habit like clenching of the teeth and/or grinding, an airway problem, stress, or a combination of factors.