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Oral Surgery · single question

A patient sustained trauma to the left side of the face and TMJ years ago. What long-term effect is expected?

  1. Asymmetric mandibular growth with deviation toward the affected side
  2. Maxillary hypoplasia only
  3. Symmetric mandibular overgrowth
  4. No long-term skeletal effect
Show answer and explanation

Correct answer: A. Asymmetric mandibular growth with deviation toward the affected side

  • A. Correct. The condyle is a major mandibular growth site. Childhood condylar injury with ankylosis restricts growth on the injured side, so the chin deviates toward the affected side and the occlusal plane cants.
  • B. The injury is mandibular; secondary maxillary changes may follow but are not the primary effect.
  • C. Damage restricts rather than accelerates growth on the affected side.
  • D. Growth-site injury in a growing patient reliably produces skeletal consequences.

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