Craniomandibular asymmetry in headache patients.

The stomatognathic system was examined in 100 chronic recurrent headache patients, and the asymmetry in clinical and radiographic findings was studied. A clinically recorded facial asymmetry was found more frequently in patients with a definite CMD pain (P less than 0.001), in patients with mainly a unilateral headache (P less than 0.01), and in patients with a head injury in the history (P less than 0.05). The radiographically determined asymmetry in condylar height in these headache patients was high. More condylar asymmetry was found in migraine patients than in patients with tension headache (P less than 0.05). Asymmetric findings in the hard-tissue condition of the temporomandibular joint were more prevalent in patients with a definite CMD pain and in those with mainly bilateral headaches.