Temporomandibular Disorder is a collective notion that embraces a multiple of clinical signs and symptoms involving the muscles of mastication, the temporomandibular joint and its associated structures, or both. Temporomandibular Disorders includes a cluster of related disorders viz masticatory muscle disorders, disc displacement disorders and inflammatory disorders of the TMJ that share many symptoms in common. Hence, it can be clearly demonstrated that Temporomandibular Disorders is not a single disease entity, but a chronology describing a group of related disorders involving the...