Contribution of magnetic resonance imaging in the biomechanical interpretation of the temporomandibular joint. Clinical case report

X-rays and tomography, in their different modalities, are used as auxiliary diagnostic elements temporomandibular joint (TMJ) dysfunction, both static dynamic situations; however, because they only allow the observation of bone structures, magnetic resonance imaging (MRI) is ideal method to analyze, among other articular disc. Among internal disorders TMJ abnormal postural relationships between disc, mandibular head, fossa tubercle, which can even lead a musculoskeletal condition causing noise, pain functional limitation. The clinical evaluation dysfunctions complex, especially asymptomatic patients; Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD), place these entities within AXIS I protocol, considering that image not strictly necessary. However, analyzing disc situation statically dynamically, with its surroundings, allows loads generate leading correct diagnosis, selection best treatment. A case presented, an patient, without limitation, who reported history occasional mouth opening locking upon awakening. MRI was indicated, finding position situation; anterior displacement right left closed position, dynamically recapture TMJ; Treatment performed Jaw Functional Orthopedics (JFO), obtaining changes disc-mandibular head relationship, total TMJ.