Dental Hygiene Local
Anesthesia Board Review
2026 | Study Guide,
Practice Questions,
Answers, Rationales &
Exam Review | Complete
Ethics Study Guide
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, describe the polarization of a nerve cell: at rest, inside of a cell is slightly (-) charged and outside is lightly (+) charged. (70
mv) difference.
describe the depolarization of a nerve cell: when there is an influx of Na+ ions and it causes the cell to become depolarized
with a (+) charge.
describe the repolarization of a nerve cell: begins immediately after depolarization with potassium (+) ions leaving the cell in
order to restore equilibrium.
myelinated nerves conduct impulses _________ with faster; less
________ energy.
what do the nodes of ranvier on myelinated nerves allow the passage of local anesthesia into the nerve cell.
for?
what is the primary action of local anesthetics? to block pain perception/transmission by decreasing permeability of sodium ions.
where does the biotransformation of esters occur? in the pseudocholinesterase of blood plasma and is then excreted by the kidneys.
where does the biotransformation of amides occur? in the liver and is then excreted by the kidneys.
which local anesthetic type is less likely to admit an allergic amides
reaction?
___________ are readily hydrolyzed in aqueous solutions, esters; amides
and _____________ are resistant to hydrolysis in aqueous
solutions.
what is the first sensation that is lost with local pain
anesthetics?
what is the function of sodium chloride in local to maintain an isotonic solution
anesthetics?
Anesthesia Board Review
2026 | Study Guide,
Practice Questions,
Answers, Rationales &
Exam Review | Complete
Ethics Study Guide
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, describe the polarization of a nerve cell: at rest, inside of a cell is slightly (-) charged and outside is lightly (+) charged. (70
mv) difference.
describe the depolarization of a nerve cell: when there is an influx of Na+ ions and it causes the cell to become depolarized
with a (+) charge.
describe the repolarization of a nerve cell: begins immediately after depolarization with potassium (+) ions leaving the cell in
order to restore equilibrium.
myelinated nerves conduct impulses _________ with faster; less
________ energy.
what do the nodes of ranvier on myelinated nerves allow the passage of local anesthesia into the nerve cell.
for?
what is the primary action of local anesthetics? to block pain perception/transmission by decreasing permeability of sodium ions.
where does the biotransformation of esters occur? in the pseudocholinesterase of blood plasma and is then excreted by the kidneys.
where does the biotransformation of amides occur? in the liver and is then excreted by the kidneys.
which local anesthetic type is less likely to admit an allergic amides
reaction?
___________ are readily hydrolyzed in aqueous solutions, esters; amides
and _____________ are resistant to hydrolysis in aqueous
solutions.
what is the first sensation that is lost with local pain
anesthetics?
what is the function of sodium chloride in local to maintain an isotonic solution
anesthetics?
