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Endodontics · single question

What is the BEST way to confirm adequate pulp anesthesia in a mandibular molar before initiating endodontic access?

  1. Percussion test
  2. Cold test
  3. Confirming lip and tongue numbness
  4. Performing the pulp access preparation
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Correct answer: D. Performing the pulp access preparation

Lip/tongue numbness confirms IAN block success but does NOT guarantee pulp anesthesia — the gold standard is performing access without patient discomfort.
  • A. Percussion tests periapical sensitivity, not pulp anesthesia.
  • B. Cold testing after anesthesia can indicate residual pulp sensitivity, but the definitive confirmation is the access procedure itself.
  • C. Lip and tongue numbness only confirms IAN block success — not pulp anesthesia. In irreversible pulpitis, the pulp can remain sensitive even with complete nerve block.
  • D. CORRECT. Performing the pulp access preparation without patient discomfort is the most definitive way to confirm adequate pulp anesthesia. Lip/tongue numbness alone does not guarantee it, especially in irreversible pulpitis where the pulp can remain 'hot.'

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