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Oral Surgery · single question

A patient with a mandibular fracture — which area of the mandible is LEAST commonly fractured?

  1. Coronoid process (very rare due to protection by zygomatic arch and masseter)
  2. Body (parasymphysis)
  3. Condyle (most common)
  4. Angle
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Correct answer: A. Coronoid process (very rare due to protection by zygomatic arch and masseter)

  • A. Correct. The coronoid process is the LEAST commonly fractured area of the mandible because it is well-protected by the overlying zygomatic arch and masseter muscle. Most forces that could fracture the coronoid are absorbed by surrounding structures.
  • B. The body/parasymphysis region is also commonly fractured.
  • C. The CONDYLE is the MOST commonly fractured area of the mandible, especially in children.
  • D. The ANGLE is frequently fractured (especially with impacted third molars weakening this area).

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