Multiple choice

The most common complication of posterior superior alveolar nerve block is________.

  1. hermatoma of pterygoid venous plexus

  2. injury of parotid gland

  3. injury to medial pterygoid muscle

  4. paresthesia of cheek
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A Correct answer
Explanation

Most common complication from posterior superior alveolar nerve block is hematoma, due to insertion of needle Too far posteriorly into the pterygoid plexus of veins; in addition, the maxillary artery may be perforated.

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