Temporomandibular joint (TMJ) syndrome or TMJ joint disorders are medical problems related to the jaw joint. The TMJ connects the lower jaw to the skull (temporal bone) under your ear. Certain facial muscles control chewing. Problems in this area can cause head and neck pain, a jaw that is locked in position or difficult to open, problems biting, and popping sounds when you bite.
Treatment for TMJ syndrome is most successful when the symptoms are recognized early and treatment is sought quickly. The longer you wait to seek treatment, the longer it will take to resolve the problem.