Costen's syndrome

Overview said, temporomandibular joint syndrome; Temporomandibular joint pain disorder syndrome all can. Cause pathogenesis molar absent, or Minute malocclusion masseter occlusion caused excessive contraction or joint degeneration. mandibular ankle displacement, the mandibular nerve ear and temporal support chorda tympani branch withstand mechanical stimulation, Eustachian tube compression. Minorities caused by mental stress. Clinical manifestations of temporomandibular joint pain, chewing generated from the temporomandibular joint wound to the Department of radioactive pain, Opening hours with temporomandibular joint disorder and snapping, the ipsilateral lower bias, masseter muscle spasm and pressure sore. There ear plugs, tinnitus, earache and respiratory decline, dizziness, nystagmus, the tongue and throat burning sensation. Differential diagnosis (1) of neurasthenia and epilepsy (neurosis and epilepsy) of such patients more associated with temporomandibular joint dysfunction, because these patients are individual character, mental and psychological boost to the state have a higher susceptibility, which often caused masticatory muscle contraction. Lead to a strong and molar teeth action, TMJ suddenly under heavy pressure, and even injury; Meanwhile masticatory muscles strong and the contraction in favor of fatigue often these muscles excitatory and inhibitory deprived of the normal balance, it leads to TMJ pain and mandibular movement abnormalities. Such patients are often typical of autonomic dysfunction syndrome and epilepsy history, the easier identification. (2) TMJ arthritis (temporomandibular arthritis) for more neighboring organs suppurative inflammation of the proliferation of where the common person to suppurative otitis media. Since inflammation of stimulation capsular thickening, fibrous tissue as a result of joint dysfunction or tonic. Rheumatic or rheumatoid arthritis temporomandibular extremely rare. (3) jaw dysplasia (occlusal jaw developmental anomal y) articular tubercle smooth, articular nodules and the inclination cusp inclination disharmony atresia, condylar retracting other abnormal condition, reflex may cause some masticatory muscle contraction strengthened. To achieve balance and function. This excessive contraction of the long-term results of joint structure can be changed to the normal position in the joints between snapping. Will enable local muscle ischemia, and the accumulation of metabolites stimulate muscle receptors cause joint pain. Acquired certain factors such as the prolonged absence of posterior teeth as extravagant or excessive consumption so that the vertical distance between the jaw shortened, and individual cusp of premature exposure can lead to the syndrome. Such patients without other incentives can be found simply jaw relationship abnormal diagnosis. (4) trauma TMJ (temporomandibular join imjury of t) patients in such a clear history of trauma, such as the fight against external forces, the hard bite of food too much, exercise too-frequent, anesthesia or oropharyngeal surgery, and so on.