EMQ/EMI Theme: Nerve Injury A Facial nerve B Inferior alveolar nerve C Lingual nerve D 5% E 0.5% F 2% G 10% H Glossopharyngeal I Hypoglossal J 1/200 000 K 0.05% L 0.01% For each of the following questions, choose the most appropriate option from the list above. 1What is the incidence of permanent lingual nerve injury subsequent to mandibular third molar surgery? 2 Which nerve neuropathy is most commonly idiopathic? 3 What is the incidence of temporary inferior alveolar nerve injury subsequent to mandibular third molar surgery? 4 A patient presents with deviation of the tongue on protrusion. Which nerve is responsible? 5 The patient presents with lack of sensation of their lower lip, gingivae and teeth on the right side. Which nerve is affected?
High-Yield Explanation
1 E 0.5%
2 A Facial nerve
3 F 2%
4 I Hypoglossal
5 B Inferior alveolar nerve
Nerve injury is a common and serious side-effect of wisdom tooth extraction. The correct statistics should be quoted to a patient when taking consent, to make sure that the consenting procedure is valid.