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Local Anesthesia Mock Board Questions and Answers Latest Version Already Passed
What is the main reason to aspirate before depositing anesthetic?✔✔ To avoid intravascular injection
Which needle length is typically recommended for an inferior alveolar nerve block?✔✔ Long needle
What landmark helps identify the correct insertion point for the mental nerve block?✔✔ Mental foramen
What type of injection is used to anesthetize the maxillary central incisor?✔✔ Supraperiosteal infiltration
What is the primary reason to use a vasoconstrictor with local anesthetic?✔✔ To reduce bleeding and prolong anesthetic effect
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Which structure is responsible for most of the diffusion resistance in a nerve bundle?✔✔ Perineurium
Which part of the trigeminal nerve is involved in mandibular anesthesia?✔✔ V3 (mandibular division)
What is the first sign of local anesthetic toxicity?✔✔ Numbness of the tongue and lips
What is the most appropriate response if a patient reports difficulty swallowing after a bilateral mandibular block?✔✔ Reassure and monitor airway; effect is usually temporary
What is the safest way to minimize patient discomfort during injection?✔✔ Inject slowly and steadily
What injection anesthetizes both the anterior teeth and associated facial gingiva?✔✔ Anterior superior alveolar block 2 / 3
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How can you tell if you’ve contacted bone too early during an IAN block?✔✔ Needle is too anterior
What is the most likely cause of a large swelling immediately after injection?✔✔ Hematoma from nicked blood vessel
Why should you avoid injecting directly into inflamed tissue?✔✔ Lower pH reduces anesthetic effectiveness
What’s the best way to manage a mild allergic reaction to local anesthetic?✔✔ Administer an antihistamine and monitor
What is the purpose of the harpoon in the syringe?✔✔ To allow aspiration
What’s the maximum number of cartridges of 2% lidocaine with 1:100,000 epi for a healthy adult?
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