Orthodontics · single question
What is the best method to identify Angle's classification of malocclusion clinically?
Show answer and explanation
Correct answer: C. Intra-oral lateral view
- A. ❌ An extra-oral frontal view shows facial symmetry but not the molar relationship needed for Angle's classification.
- B. ❌ An extra-oral lateral (profile) view can suggest skeletal class but does not allow direct visual assessment of molar occlusion.
- C. ✅ Correct. The intra-oral lateral (buccal) view provides direct visualization of the mesiobuccal cusp of the upper first molar relative to the mesiobuccal groove of the lower first molar — the landmark for Angle's classification.
- D. ❌ An intra-oral frontal view shows the anterior relationship but not the posteroanterior molar relationship clearly.