Trismus

Aka: Trismus, Lockjaw

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II. Definition

  1. Spasm of the Masticatory Muscles resulting in jaw forcefully held closed

III. Causes: Localized Muscle spasm

  1. Trigeminal Neuralgia
  2. Dermatomyositis involving the face
  3. Temporomandibular Joint Osteoarthritis
  4. Impacted third molar

IV. Causes: Generalized Muscle spasm

  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

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