The primary causative factor for myofacial pain dysfunction syndrome of the TMJ is_______________?
Correct answer: C. Muscular overextension and over contraction
- A. Infratemporal space infection
- B. Auriculotemporal neuritis
- C. Muscular overextension and over contraction
- D. Otitis media
Explanation
Myofascial pain dysfunction is chiefly related to abnormal muscle activity, including overextension and sustained contraction of the masticatory muscles. Infratemporal infection, auriculotemporal neuritis and otitis media are not the primary mechanism.
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