Anatomy & Histology · single question

Most likely cause?

Maximum opening 25 mm; mandible deviates to the LEFT on further opening.

  1. Left condyle doesn't rotate
  2. Left condyle doesn't translate
  3. Right condyle doesn't rotate
  4. Right condyle doesn't translate
Show answer and explanation

Correct answer: B. Left condyle doesn't translate

On opening, the mandible deviates toward the side that fails to translate — here, the left.
  • A. Rotation occurs in early opening; the limitation/deviation here implicates translation.
  • B. Correct. The mandible deviates TOWARD the restricted side — left deviation = the LEFT condyle is failing to translate.
  • C. Deviation is toward the affected side (left), implicating the left, not right, condyle.
  • D. That would cause deviation to the RIGHT, not left.

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