Local Anesthesia Board Questions with Detailed Verified Answers

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Local Anesthesia Board Questions with
Detailed Verified Answers

Question:Where does the mandibular nerve pass through in the skull?

Ans: Foramen Ovale

Question: Trigeminal nerve (CN V)

Ans: V1 ophthalmic (sensory)

V2 maxillary (only sensory)

V3 mandibular (both)

Question: Where nasopalatine nerve passes through

Ans: Incisive Foramen

Question: Maxillary division of Trigeminal Nerve is

Ans: -V2

-Sensory

Question: Nerve NOT associated with the mandibular nerve branch

Ans: Infraorbital nerve

Question: The IANB anesthetizes which nerves

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Ans: -inferior alveolar

-lingual nerve

-mental nerve



-does not anesthetize the buccal nerve

Question: Teeth that PSA innervates

Ans: 1st, 2nd, and 3rd maxillary molars, but may not innervate MB root of the
maxillary 1st molar

Question: What injection is needed to anesthetize linguals of max
anteriors

Ans: Nasopalatine

Question: What injections are needed to anesthetize the entire palate on
one side

Ans: Greater Palatine and Nasopalatine

Question: How far do you insert the needle on an IANB?

Ans: 20-25 mm or 3/4 the length of the needle

Question: What happens during depolarization?

Ans: Sodium channels open, Na goes in and K goes out

-tries to get to +40 to have an action potential

Question: What happens during repolarization?

Ans: sodium channels close, Na goes back out and K comess back in

-60 to -90

Question: When do you aspirate?