Endodontics · single question

The same tooth #20. If the vitality test is negative (no response), what is the pulpal diagnosis?

  1. Necrotic pulp
  2. Reversible pulpitis
  3. Irreversible pulpitis
  4. Normal pulp
Show answer and explanation

Correct answer: A. Necrotic pulp

  • A. Correct. No response to pulp testing indicates a non-vital, necrotic pulp — the tooth requires root canal therapy or extraction.
  • B. Reversible pulpitis responds to stimuli (sharp pain that subsides) — the pulp is still vital.
  • C. Irreversible pulpitis gives a lingering, often exaggerated response — the pulp is vital but inflamed.
  • D. A normal pulp responds normally to testing; no response is abnormal.

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