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5 Written questions

5 Matching questions

  1. What forms the border between the symphisis and body of the mandible?
  2. what are the most common complications of orbital floor repair
  3. Draw horizontally favorable and unfavorable mandibular angle fractures.
  4. Long-term complications of orbital blow out
  5. What is shown in a Water's view film?
  1. a diploplia and enopthalmos
  2. b enophthalmos, dipoloplia, infraorbital nerve hypesthesia
  3. c
    upper 2/3 of facial bones, maxillary sinuses
  4. d An imaginary line drawn at the canines
  5. e

5 Multiple choice questions

  1. 1. isolated nondisplaced fractures of the coronoid

    2. unilateral nondisplaced subcondylar fracture with normal occlusion

  2. Class II: retrognathism
    Class III: prognathism

  3. "ideal lines of osteosynthesis" across the mandibular angle where the compressive and tensile forces from mastication can be countered with only monocortical fixation
  4. 6%
  5. Associated fibrillation potentials show up starting 3 days after injury.

5 True/False questions

  1. Describe vertically unfavorable mandible 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.

          

  2. What is shown in a submental vertex view film?
    upper 2/3 of facial bones, maxillary sinuses

          

  3. Absolute and relative indications for open reduction of subcondylar fxAbsolute
    1. Dislocation into middle cranial fossa
    2. Lateral extracapsular displacement
    3. Inability to obtain adequate occlusion with closed reduction
    4. Open joint with foreign body

    Relative
    1. Bilateral subcondylar fx's in edentulous patient (splinting impossible)
    2. When splinting not recommended for medical reasons
    3. Bilateral fractures associated with comminuted midfacial fractures

          

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

          

  5. how do you treat frostbite of the ear?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

          

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