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Orthodontics · single question

Which is a recognized cause of malocclusion (vs. an EXCEPTION)? – The EXCEPTION (not a cause) is:

  1. Premature loss of primary teeth
  2. Prolonged thumb-sucking
  3. Hormonal imbalance
  4. Internal resorption
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Correct answer: C. Hormonal imbalance

  • A. Incorrect – a classic cause of space loss and malocclusion.
  • B. Incorrect – a well-known cause of anterior open bite/Class II tendencies.
  • C. Correct as the intended EXCEPTION (per the source key) – systemic hormonal imbalance is not a direct local cause of malocclusion in this item.
  • D. Incorrect – listed as a cause in the source set.

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