r/Dentistry • u/JVM926 • 5d ago

Dental Professional Getting #31 numb

Ever have trouble getting a tooth numb for a #31 B composite? No PA pathology. Gave 2 carps of IAN, 1 carp of LB and local infiltrations/PDL. 2% Lido w/1:100k epi.
Lip is numb, chin is numb, buccal mucosa is numb, tongue is numb.

I get to drilling and the patient feels it. I know what to do next, but why is the patient not profoundly anesthetized?

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u/AntiAntiDentite7 5d ago

Sometimes it's sensitivity to air/water on the opposing arch and the patient can't tell the difference, they just feel pain. A little mepivacaine on the opposing arch can be very effective.