Dental anesthetic sensitivity facts
from Dental Health Magazine
These patients may complain of sweating, heart palpitations, terrible migraines or even shaking (tremor). Now epinephrine is a very important ingredient that helps making the anesthetic more efficient. Imagine this: an anesthetic without epinephrine content can keep you numb for about five to seven minutes, while an anesthetic with epi will keep you numb even for up to an hour. Epinephrine is also important because it has vasoconstrictor properties; that is, it helps stopping the bleeding in soft tissues within the mouth.
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