DANB Pharmacology and Pain Management 2

Question 1

Which local anesthetic is most commonly used in dental practice?

Accepted Answer

Lidocaine

Answer

Mepivacaine

Answer

Bupivacaine

Answer

Prilocaine

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

To increase the rate of drug absorption into the bloodstream

Answer

To increase the patient's blood pressure during treatment

Answer

To raise the pH of the anesthetic solution

Question 3

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

Accepted Answer

Inferior alveolar nerve block

Answer

Infiltration injection

Answer

Field block

Answer

Intraosseous injection

Question 4

Topical anesthetics are applied before injections primarily to:

Accepted Answer

Numb surface tissue and reduce injection discomfort

Answer

Sterilize the injection site

Answer

Increase the effectiveness of the injected local anesthetic

Answer

Prevent allergic reactions to the anesthetic

Question 5

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

Accepted Answer

1:100,000

Answer

1:10,000

Answer

1:50,000

Answer

1:200,000

Question 6

Which of the following is an early sign of local anesthetic toxicity?

Accepted Answer

Ringing in the ears (tinnitus)

Answer

Increased salivation

Answer

Numbness confined to the injection site

Answer

Elevated blood pressure

Question 7

What is the primary purpose of nitrous oxide in dentistry?

Accepted Answer

To achieve conscious sedation and reduce patient anxiety

Answer

To provide local anesthesia to teeth

Answer

To induce general anesthesia for surgical procedures

Answer

To serve as antibiotic prophylaxis before procedures