The addition of epinephrine to lidocaine hydrochloride:
a. causes vasodilation.
b. prolongs the duration of anesthesia.
c. reduces microorganism penetration.
d. decreases the pain of the anesthetic injection.
a. causes vasodilation.
b. prolongs the duration of anesthesia.
c. reduces microorganism penetration.
d. decreases the pain of the anesthetic injection.