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5 Written questions

5 Matching questions

  1. arterial supply to the mandible
  2. Describe the direction of force on the mandible for each muscle:

    1. Temporalis
    2. Lateral pterygoid
    3. Medial pterygoid
    4. Masseter
    5. Geniohyoid
    6. Digastric
  3. what are the most common complications of orbital floor repair
  4. Describe vertically unfavorable mandible fractures.
  5. how do you treat frostbite of the ear?
  1. a rapid rewarming in circulating water. avoid rubbing and dry heat as both of these predispose to liquefactive necrosis. surgical debridement not indicated for 3 weeks for final demarcation of injury
  2. b
    1. Temporalis pulls coronoid posterosuperiorly.
    2. Lateral pterygoid pulls condyle anteroinferiorly.
    3 & 4. Masseter & medial pterygoid pull the angle anterosuperiorly.
    5 & 6. Geniohyoid and digastric pull mentum inferoposteriorly.
  3. c Usually involve the body and sympysis-parasymphysis areas.

    The fracture line is posterior on the lateral cortex and anterior on the medial cortex. Therefore, the portion of the mandible posterior to the fracture is pulled medially, displacing the fracture. The mylohyoid is the primary muscle displacing the fracture.
  4. d diploplia and enopthalmos
  5. e external carotid-->internal maxillary-->inferior alveolar

5 Multiple choice questions


  1. upper 2/3 of facial bones, maxillary sinuses
  2. Associated fibrillation potentials show up starting 3 days after injury.
  3. 1. isolated nondisplaced fractures of the coronoid

    2. unilateral nondisplaced subcondylar fracture with normal occlusion

  4. zygomas

  5. Class II: retrognathism
    Class III: prognathism

5 True/False questions

  1. What forms the border between the symphisis and body of the mandible?external carotid-->internal maxillary-->inferior alveolar

          

  2. How often do isolated fractures of a single site in the mandible occur?rapid rewarming in circulating water. avoid rubbing and dry heat as both of these predispose to liquefactive necrosis. surgical debridement not indicated for 3 weeks for final demarcation of injury

          

  3. type of fracture most often associated with a mandibular body fracturesymphysis and condyle of contralateral side

          

  4. Treatement of posterior table frontal sinus fractures.If no displacement or e/o CFS leak, observe and give abx. If displaced, obliteration and possible repair of dural tear. Cranialization reserved for fracture with significant bone loss or comminution.

          

  5. Draw horizontally favorable and unfavorable mandibular angle fractures.Usually involve the body and sympysis-parasymphysis areas.

    The fracture line is posterior on the lateral cortex and anterior on the medial cortex. Therefore, the portion of the mandible posterior to the fracture is pulled medially, displacing the fracture. The mylohyoid is the primary muscle displacing the fracture.

          

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