Start practicing

Orthodontics · single question

Which class of malocclusion is most commonly associated with obstructive sleep apnea (OSA)?

  1. Class II
  2. Class III
  3. Class I
  4. Open bite
Show answer and explanation

Correct answer: A. Class II

  • A. Correct. Class II (retrognathic/retruded mandible) reduces the posterior airway space and is most associated with OSA.
  • B. Class III (prognathic mandible) tends to enlarge the airway.
  • C. Class I is the normal sagittal relationship.
  • D. Open bite alone is not the primary OSA association.

Practice Orthodontics questions Orthodontics study notes

More Orthodontics practice questions