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Endodontics · single question

Tooth #2 does not respond to cold but is painful to percussion and palpation. Diagnosis?

  1. Pulp necrosis with symptomatic apical periodontitis
  2. Reversible pulpitis
  3. Symptomatic irreversible pulpitis
  4. Normal pulp with normal apical tissues
Show answer and explanation

Correct answer: A. Pulp necrosis with symptomatic apical periodontitis

  • A. Correct. No cold response indicates pulp necrosis; percussion/palpation pain indicates symptomatic apical periodontitis.
  • B. Incorrect. Reversible pulpitis requires a vital pulp that responds (briefly) to cold.
  • C. Incorrect. Irreversible pulpitis requires a vital, hyper-responsive pulp — but this tooth is non-responsive.
  • D. Incorrect. Percussion/palpation pain and absent vitality are not normal findings.

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