Reducing the rate of systemic absorption of a local anesthetic is important when it is used in dentistry because

Question

Quizplus · Accepted Answer

The chance of systemic toxicity is reduced with a reduced rate of absorption.A vasoconstrictor is often added to the local anesthetic to reduce the rate of absorption.The vasoconstrictor reduces the blood supply to the area,limits systemic absorption,and reduces systemic toxicity.The local anesthetic agents by themselves are vasodilators.This will increase the chances of systemic toxicity.Dental local anesthetics without vasoconstrictor have the shortest duration of action.

Reducing the Rate of Systemic Absorption of a Local Anesthetic