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Trismus

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Trismus, Lockjaw

  • Definition
  1. Spasm of the Masticatory Muscles resulting in jaw forcefully held closed
  • Causes
  • Localized Muscle spasm
  1. Trigeminal Neuralgia
  2. Dermatomyositis involving the face
  3. Temporomandibular Joint Osteoarthritis
  4. Impacted third molar
  1. Infection
    1. Tetanus
    2. Trichinosis
    3. Typhoid Fever
    4. Rabies
    5. Cholera
    6. Sepsis
    7. Encephalitis
  2. Miscellaneous
    1. Tetany
    2. Seizure Disorder
    3. Psychiatric causes