AGD Dental Pharmacology 3

Question 1

Why is ibuprofen generally preferred over acetaminophen as a first-line analgesic for acute dental pain?

Accepted Answer

It provides both analgesic and anti-inflammatory effects at therapeutic doses

Answer

Ibuprofen reduces dental pain through both peripheral analgesic and anti-inflammatory mechanisms, targeting the prostaglandin-mediated inflammation that underlies most dental pain.

Question 2

Acetaminophen's analgesic mechanism differs from NSAIDs primarily because it:

Accepted Answer

Acts centrally and does not significantly inhibit peripheral cyclooxygenase enzymes

Answer

Acetaminophen acts centrally on pain perception and fever without meaningful peripheral COX inhibition, which explains its lack of clinically significant anti-inflammatory action.

Question 3

For a patient taking warfarin who needs post-operative pain management after a dental extraction, the most appropriate analgesic is:

Accepted Answer

Acetaminophen 500–1000 mg

Answer

Acetaminophen is preferred in anticoagulated patients because NSAIDs and aspirin inhibit platelet aggregation and may potentiate warfarin's anticoagulant effect.

Question 4

The combination of ibuprofen and acetaminophen is considered optimal for moderate dental pain because:

Accepted Answer

They target different pain pathways, providing additive analgesia without opioids

Answer

Ibuprofen targets peripheral inflammatory pathways (COX inhibition) while acetaminophen modulates central pain perception, providing superior multimodal analgesia.

Question 5

Nitrous oxide produces its analgesic and anxiolytic effects in dentistry primarily through:

Accepted Answer

Releasing endogenous opioids and antagonizing NMDA receptors

Answer

Nitrous oxide stimulates endogenous opioid peptide release and antagonizes NMDA glutamate receptors, which together account for its analgesic and dissociative effects.

(AGD) Academy of General Dentistry Certification Practice Test

(AGD) Academy of General Dentistry Certification Practice Test

AGD Dental Pharmacology 3