Practice questions › BDS / Dentistry › BDS Professional Review: Core Dental Sciences
Oral Surgery, Local Anesthesia and Pharmacology MCQs
BDS Professional Review: Core Dental Sciences · BDS / Dentistry · 26 practice questions
- Emergency drugs by clinical scenario
- Local anesthetic classification
- Emergency drugs in dental practice
- Odontogenic infection management
- Local anesthetic mechanism and classification
- Odontogenic infection vs Ludwig's angina
- Ludwig's angina
- Local anesthetic mechanism
1. An oral surgeon is evaluating a panoramic radiograph of an impacted mandibular third molar and wants to assess both its angulation relative to the second molar and its depth relative to the ramus of the mandible. Which two classification systems would be used together for this comprehensive assessment?
- AWinter's classification for angulation and Pell and Gregory for ramus relationship and depth
- BPell and Gregory for angulation only, no depth assessment needed
- CWinter's classification for depth and Pell and Gregory for angulation
- DAngle's classification for angulation and Winter's for depth
Show answer
A. Winter's classification for angulation and Pell and Gregory for ramus relationship and depth The chapter clearly separates Winter's classification (angulation) from Pell and Gregory classification (ramus relationship and depth).
2. During a dental procedure, a patient suddenly develops facial swelling, wheezing, and hypotension shortly after receiving a local anesthetic injection, consistent with anaphylaxis. What is the first-line emergency drug and route of administration?
- AIntramuscular adrenaline (epinephrine)
- BIntravenous nitroglycerin
- COral glucose
- DSublingual salbutamol
Show answer
A. Intramuscular adrenaline (epinephrine) The chapter specifies adrenaline (epinephrine) IM as first-line for anaphylaxis.
3. A dentist performs a standard inferior alveolar nerve block using the pterygomandibular raphe as the injection landmark. After adequate anesthesia, which nerve distribution is LEAST reliably anesthetized by this technique compared to the others listed?
- AIncisive nerve
- BLingual nerve
- CInferior alveolar nerve
- DMental nerve
Show answer
B. Lingual nerve The text specifies the lingual nerve is only 'usually' anesthetized, unlike the inferior alveolar, mental, and incisive nerves which are consistently blocked.
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