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Anesthesia · single question

Articaine is clinically superior to lidocaine for which specific use?

  1. Mandibular infiltration anesthesia
  2. Lower systemic toxicity
  3. Nerve block anesthesia
  4. Longer duration of action
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Correct answer: A. Mandibular infiltration anesthesia

Articaine's thiophene ring and 4% concentration allow it to diffuse through cortical bone better, making mandibular buccal infiltration effective without an IAN block in some cases.
  • A. ✅ CORRECT – Articaine outperforms lidocaine for mandibular infiltration due to superior bone diffusion.
  • B. ❌ Articaine has slightly higher paresthesia risk; not noted for lower toxicity.
  • C. ❌ For nerve blocks, articaine and lidocaine have similar efficacy; infiltration is the advantage.
  • D. ❌ Articaine does not have longer duration than lidocaine with vasoconstrictor.

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