Myofacial pain dysfunction syndrome: A clinical study of asymptomatic subjects

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Abstract
The diagnosis of myofacial pain dysfunction (MPD), commonly called temporomandibular joint syndrome, has traditionally been made on the presence of a group of clinical symptoms that produce pain and limitation of movement. The cause of this common illness has been the subject of controversy for over half a century. There has been a lack of agreement on diagnosis, cause, and treatment. Advanced bioelectronic technology now makes an accurate diagnosis possible, based not merely on clinical symptoms, but on reproducible scientific data. A cause of MPD is discernable and reliable treatment possible, as well as long lasting resolution objectively monitorable with the Mandibular Kinesiograph® (MKG 5-R) and Bioelectric Processor® (EMIR). A study of mandibular movement and masticular muscle function of 26 “normal” subjects (i.e., clinically asymptomatic) revealed that the overwhelming majority did indeed have dysfunction of the muscles which move and posture the mandible. The significance of this study is twofold. First it demonstrates a valid testing procedure for measuring mandibular movement and muscle function. Second it establishes the fact that most individuals have a physical predisposition to MPD. Changes in the adaptive capacity of the neuromusculature by physical or emotional trauma could then precipitate MPD.

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