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Orthodontics · single question

A Class II Division 1 malocclusion is generally characterized by which combination of features?

  1. A Class I molar relationship with normal overjet
  2. A Class II molar relationship (distal step pattern), with proclined/flared maxillary incisors and increased overjet
  3. A bilateral posterior crossbite only, with no sagittal discrepancy
  4. An anterior open bite only, with normal molar relationship
Show answer and explanation

Correct answer: B. A Class II molar relationship (distal step pattern), with proclined/flared maxillary incisors and increased overjet

Class II Division 1 = Class II molar relationship PLUS proclined maxillary incisors with increased overjet (as opposed to Division 2, which has Class II molars with retroclined/upright or lingually tipped central incisors and often a deep overbite).

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