Cephalometry quiz

Marcello M. | November 18, 2025

Test your knowledge of cephalometric points, angles, and clinical significance. Select the answers you think are correct, then check the answer key at the bottom.

1. Which angle is used to evaluate the sagittal relationship between the maxilla and the mandible?




2. Which cephalometric point represents the anterior extremity of the maxillary apical base?




3. What does the Wits appraisal measure?




4. Which angle is used to evaluate mandibular inclination relative to the cranial base?




5. Pogonion (Pog) corresponds to:




6. Which angle measures the vertical growth of the lower face?




7. Which point represents the junction of the frontal and nasal bones?




8. Which angle evaluates the inclination of the upper incisors relative to the NA line?




9. Which point is the most posterior on the mandibular symphysis?




10. What is the main purpose of cephalometric analysis?




Answer Key and Explanations:

  1. ANB – Measures the sagittal relationship between maxilla and mandible (Class I, II, III).
  2. Point A – Most anterior point of the maxillary apical base; key reference for sagittal analysis.
  3. Sagittal relationship of points A and B projected on the occlusal plane – Wits appraisal evaluates jaw relationship along occlusal plane.
  4. SN-GoGn – Measures mandibular inclination relative to cranial base; important for vertical growth assessment.
  5. Pogonion – Most anterior point of the chin; helps in evaluating mandibular projection.
  6. FMA (Frankfort Mandibular Angle) – Indicates vertical growth pattern of the lower face.
  7. Nasion – Junction of frontal and nasal bones; reference point for multiple cephalometric measurements.
  8. U1 to NA angle – Evaluates inclination of upper incisors relative to NA line; important for dental compensation.
  9. Gnathion – Most posterior point on mandibular symphysis; used in facial profile analysis.
  10. Evaluate dento-skeletal and facial relationships – Cephalometric analysis guides diagnosis and treatment planning.