DANB Pharmacology and Pain Management 2

Question 1

Which local anesthetic is most commonly used in dental practice?

Accepted Answer

Lidocaine

Answer

Lidocaine 2% is the most widely used local anesthetic in dentistry due to its effectiveness, rapid onset, and well-established safety profile.

Question 2

What is the purpose of a vasoconstrictor added to local anesthetic solutions?

Accepted Answer

To prolong the duration of anesthesia and reduce systemic toxicity

Answer

Vasoconstrictors like epinephrine constrict blood vessels, keeping the anesthetic localized longer and reducing systemic absorption, which lowers toxicity risk.

Question 3

Which injection technique anesthetizes the teeth and soft tissue of an entire mandibular quadrant?

Accepted Answer

Inferior alveolar nerve block

Answer

The inferior alveolar nerve block targets the inferior alveolar nerve, providing profound anesthesia to the teeth, bone, and soft tissues of an entire mandibular quadrant.

Question 4

Topical anesthetics are applied before injections primarily to:

Accepted Answer

Numb surface tissue and reduce injection discomfort

Answer

Topical anesthetics numb the superficial mucosal tissue before the injection, reducing the discomfort the patient experiences from needle penetration.

Question 5

What concentration of epinephrine is most commonly found in standard dental local anesthetic cartridges?

Accepted Answer

1:100,000

Answer

The 1:100,000 concentration of epinephrine is standard in most dental anesthetic carpules, providing effective vasoconstriction while minimizing cardiovascular side effects.

DANB General Chairside Assisting (GC) Test Practice Test

DANB General Chairside Assisting (GC) Test Practice Test

DANB Pharmacology and Pain Management 2