ABSTRACT
ANATOMY 1. Failure to repair which muscle during genioplasty can lead to a “witch’s chin”
deformity? A. Depressor anguli oris B. Depressor labii oris C. Mentalis
D. Geniohyoid E. Genioglossus
2. Which nerve is most at risk of inadvertent injury during a sliding genioplasty? A. Marginal mandibular nerve B. Hypoglossal nerve C. Mandibular nerve
D. Inferior alveolar nerve E. Mental nerve
OCCLUSION 3. What is the most common type of malocclusion in North American white
individuals? A. Angle class I B. Angle class II C. Angle class III
D. Angle class IV E. Angle class V
EVALUATION OF SOFT TISSUES 4. When evaluating chin prominence in clinic, which one of the following
structures should normally lie on Riedel’s plane? A. Upper lip B. Nasal tip C. Alar base
D. Labiomental crease E. Modiolus
OSSEOUS GENIOPLASTY 5. Which one of the following statements is true regarding osseous genioplasty?
