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Oral Surgery · single question

Which nerve(s) are typically anesthetized to extract a maxillary molar?

  1. Only the inferior alveolar nerve
  2. The posterior superior alveolar (PSA) nerve, often supplemented by the middle superior alveolar nerve (for the mesiobuccal root of the first molar) and the greater palatine nerve (for palatal soft tissue)
  3. Only the long buccal nerve
  4. Only the nasopalatine nerve
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Correct answer: B. The posterior superior alveolar (PSA) nerve, often supplemented by the middle superior alveolar nerve (for the mesiobuccal root of the first molar) and the greater palatine nerve (for palatal soft tissue)

Maxillary molar extraction typically requires PSA nerve anesthesia for the buccal/pulpal tissues, supplemented by greater palatine nerve block for the palatal soft tissue, and sometimes MSA coverage depending on innervation overlap to the mesiobuccal root of the first molar.

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