Every dentist has faced it: the mandibular molar with a raging pulp that shrugs off your best IAN block like it was tap water. The lip's numb, your patient swears they're not, and now you're both sweating through the bib.   This wasn't just one Townie's bad day, it was the spark for one of the deepest, funniest, and most practical threads on Dentaltown in years. A global brain trust weighed in, debating anesthetic brands, injection techniques, pain management strategies, and just how much articaine is too much. What emerged wasn't a magic bullet, but a clear playbook for how to handle the dreaded "hot tooth" with skill, humility, and a few dirty tricks.   The Classic Scenario It usually starts with #18 or #19, irreversible pulpitis, and a patient in pain. You give a textbook IANB, maybe even follow up with a buccal infiltration. But the second you pick up your handpiece or touch cold to enamel, they jump. You've blocked the lip, the tongue, the soul, but not the pulp. Now what?   Technique or Tooth? Most Townies agree: when a patient doesn't go numb, don't rush to blame the anesthetic. It's usually technique. Articaine blocks? They're fine if you're hitting bone and working fast (onset in 

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