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Oral Surgery · single question

When raising a surgical flap to extract #17 (mandibular third molar), the flap should:

  1. Be made on the lingual side
  2. End on solid bone, not in an anatomical space
  3. Extend into the submandibular space
Show answer and explanation

Correct answer: B. End on solid bone, not in an anatomical space

  • A. INCORRECT. A lingual approach risks the lingual nerve and is avoided.
  • B. CORRECT. Flap margins should rest on sound bone for support and healing, not over a defect or space.
  • C. INCORRECT. Extending into the submandibular space risks spreading infection and damaging structures.

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