A member asked:

When the dentist is about to give you a shot, they will swab the gum with the benzocaine, and the numbness happens almost instantly. how does it do it?

A doctor has provided 1 answer
Dr. Theodore Davantzis answered

Specializes in Dentistry

Absorbtion: The topical anesthetic as absorbed through the mucous membranes and affects the surface nerve endings almost immediately.

Answered 1/22/2014

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