DANB CDA Dental Pharmacology 3

Question 1

Why is a thorough medication history essential before dental treatment?

Accepted Answer

To identify drug interactions, allergies, and systemic contraindications

Answer

To determine the patient's insurance coverage

Answer

To decide what radiographic projections to take

Answer

To calculate the patient's copayment amount

Question 2

Nitroglycerin is stocked in the dental office emergency kit primarily to manage which condition?

Accepted Answer

Angina pectoris

Answer

Diabetic hypoglycemia

Answer

Tonic-clonic seizures

Answer

Respiratory arrest

Question 3

Which class of medications can prolong bleeding time and requires physician consultation before oral surgery?

Accepted Answer

Anticoagulants such as warfarin

Answer

Antihypertensives

Answer

Antidepressants

Answer

Antifungals

Question 4

How does nitrous oxide produce its sedative and analgesic effects in dentistry?

Accepted Answer

It depresses the central nervous system, producing sedation and reducing pain perception

Answer

It blocks sodium ion channels at peripheral nerve fibers

Answer

It constricts blood vessels to reduce bleeding at the operative site

Answer

It eliminates oral bacteria to prevent postoperative infection

Question 5

Which drug class includes triazolam, sometimes prescribed for management of severe dental anxiety?

Accepted Answer

Benzodiazepines

Answer

Opioids

Answer

NSAIDs

Answer

Antihistamines

Question 6

Gingival hyperplasia (overgrowth of gum tissue) is a known oral side effect of which drug class?

Accepted Answer

Calcium channel blockers such as nifedipine

Answer

NSAIDs such as ibuprofen

Answer

Antihistamines such as diphenhydramine

Answer

Antibiotics such as amoxicillin

Question 7

Which over-the-counter topical anesthetic agent is most commonly applied intraorally before needle insertion?

Accepted Answer

Benzocaine 20% gel

Answer

Lidocaine 2% injectable solution

Answer

Mepivacaine 3% cartridge

Answer

Bupivacaine 0.5% solution