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Oral Surgery · single question

Infection from the maxillary second premolar most likely spreads to which space?

  1. Submasseteric space
  2. Canine space
  3. Buccal space
  4. Infratemporal space
Show answer and explanation

Correct answer: C. Buccal space

Maxillary second premolar root apex is above the buccinator attachment. Infection penetrates buccal cortex above buccinator → BUCCAL SPACE. Canine space = maxillary canine/first premolar.

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