As a result of this repeated, though unconscious action, a person may experience premature tooth wear, crazing (web-like fracturing of enamel), cracks, and chips. Patients may suffer from sensitivity to hot and cold temperatures as well as pressure. Jaw pain, headaches, and migraines can also plague bruxers.
TMJ disorder, or TMD, stands for temporomandibular joint disorder. It occurs when the joints that hold the lower jaw to the skull are improperly aligned when the jaw is at rest. Many factors cause TMJ disorder, but bruxism and TMD are typically linked.