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Oral Surgery · single question

An infection from the maxillary second premolar (#13) is most likely to spread to which fascial space?

  1. Buccal space
  2. Lingual space
  3. Canine space
  4. Pharyngeal space
Show answer and explanation

Correct answer: A. Buccal space

  • A. Correct. Maxillary premolar/molar roots typically lie above the buccinator attachment, so infection drains into the buccal space.
  • B. Lingual/sublingual spaces relate to mandibular teeth.
  • C. The canine space is associated with the maxillary canine (long root above levator anguli oris).
  • D. Pharyngeal space spread is associated with posterior mandibular molars.

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