Regarding the mechanism of temporomandibular disorders (TMDs), TMD
pain including muscle tenderness to palpation is considered to be caused by masticatory
muscle fatigue induced with occlusal discrepancy. Temporomandibualr joint (TMJ)
derangement is considered to be occurred due to mandibular displacement from
muscular position to habitual position.
Keywords: TMJ derangement, muscle fatigue, muscle tenderness, muscle spasm,
masticatory muscles, neuralgias, earache, jawache, ethyl chloride spray, tensional
factors, malocclusion, disc displacement, myofascial pain, capsulitis, trigger
point, postural habits, vascular headache, nociceptor, occlusal discrepancy.
