Oral Surgery · single question
Which nerves are anesthetized for the extraction of maxillary tooth #1 (upper right third molar)?
Show answer and explanation
Correct answer: A. Posterior superior alveolar nerve and greater palatine nerve
The original question refers to '#8' which in the Universal Numbering System is the maxillary right central incisor, not the third molar. However, given the context (extraction requiring IAn/lingual vs. PSA), this question appears to be asking about the maxillary third molar (#1 in Universal Numbering). For maxillary molar extraction, the posterior superior alveolar (PSA) nerve block anesthetizes the buccal aspect and pulp of the upper molars, while the greater palatine nerve block covers the palatal soft tissue. The inferior alveolar nerve and lingual nerve (option b) are used for mandibular third molar extractions (#17 or #32).