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2024 LOCAL ANESTHESIA BOARD
EXAM PREP 200 REAL EXAM
QUESTIONS AND CORRECT ANSWERS/
LOCAL ANESTHESIA BOARD EXAM
LATEST VERSION 2024/2025 (NEWEST)
These questions and answers have been derived from DHY 240 lecture notes & Handbook of Local Anesthesia textbook (Malamed) What type of needle is used for the Buccal ("Long Buccal") Nerve Block? - ANSWER-25g or 27g long (*25g or 27g short can be used if ONLY doing the Buccal injection)
Which Mandibular Injection uses a 25g or 27g Short needle? - ANSWER- Mental/Incisive
Which Mandibular Injection uses a 27g Short or 30g Extra Short needle? - ANSWER-PDL Supplemental Injection
What happens during repolarization? - ANSWER-Action potential is terminated & returns to resting state (polarized)
Na+ efflux (Na+ ions forced out by Sodium Pumps)
What is the difference between an infiltration and nerve block? - ANSWER- Infiltration - L.A. deposited at terminal nerve endings (smaller area, shorter L.A.duration)
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pg. 2 Nerve Block - L.A. deposited near large nerve trunks (larger area, longer L.A.duration)
Which Maxillary Injection(s) uses a 27g Short needle? - ANSWER-Infiltration, PSA, MSA, & ASA
Which Palatal Injection(s) uses a 25g or 27g Short needle? - ANSWER-Greater Palatine & Nasopalatine
Which Mandibular Injection uses a 25g Long needle? - ANSWER-Inferior Alveolar
For an Infiltration injection - Nerve(s) anesthetized & Area(s) anesthetized? - ANSWER-Nerve (s) anesthetized: Large terminal branches of dental plexus
Area (s) anesthetized: Pulps of 1 or 2 teeth, Buccal mucous membrane, bone
For a PSA Nerve Block - Nerve(s) anesthetized & Area(s) anesthetized? - ANSWER-Nerve (s) anesthetized: PSA n. & branches
Area (s) anesthetized: Pulps of Max. Molars (except mesiobuccal root of 1st
molar), Buccal mucous membrane, & Bone
For an MSA Nerve Block - Nerve(s) anesthetized & Area(s) anesthetized? - ANSWER-Nerve (s) anesthetized: MSA n. & branches 2 / 4
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Area (s) anesthetized: Pulps of Max. Premolars, Mesiobuccal root of 1st molar,
Buccal Periodontal Tissues, & Bone
For an ASA Nerve Block - Nerve(s) anesthetized & Area(s) anesthetized? - ANSWER-Nerve (s) anesthetized: ASA n., MSA n., & Infraorbital n. (Inferior Palpebral n., Lateral Nasal n., Superior Labial n.)
Area (s) anesthetized: Pulps of Max. Incisors to Canines (if MSA n. NOT present - anesthetizes Premolars & MB root of 1st molar), Facial Soft Tissues, Buccal Periodontium, & Bone
For a Greater Palatine Nerve Block - Nerve(s) anesthetized & Area(s) anesthetized? - ANSWER-Nerve (s) anesthetized: Greater Palatine n.
Area (s) anesthetized: Palatal Hard & Soft tissues distal to Canine & medially to midline
For a Nasopalatine Nerve Block - Nerve(s) anesthetized & Area(s) anesthetized? - ANSWER-Nerve (s) anesthetized: Nasopalatine n. (bilaterally)
Area (s) anesthetized: Anterior portion of Hard Palate (hard & soft tissues) bilaterally from Mesial of R. 1st Premolar to L. 1st Premolar
For an Inferior Alveolar Nerve Block - 3 / 4
pg. 4 Nerve(s) anesthetized & Area(s) anesthetized? - ANSWER-Nerve (s) anesthetized: Inferior Alveolar n., Mental n., Incisive n., & Lingual n.
Area (s) anesthetized: All Mand. teeth on 1 side (molars to midline), Buccal
periosteum anterior to 1st molar, Buccal soft tissues of Anteriors & Premolars, Lingual Soft tissues & periosteum (Lingual n.), Anterior 2/3 of tongue & Floor of oral cavity
For a Buccal ("Long Buccal") Nerve Block - Nerve(s) anesthetized & Area(s) anesthetized? - ANSWER-Nerve (s) anesthetized: Buccal n.
Area (s) anesthetized: Buccal soft tissues adjacent to Mandibular molars
For a Mental/Incisive Nerve Block - Nerve(s) anesthetized & Area(s) anesthetized? - ANSWER-Nerve (s) anesthetized: Mental n. & Incisive n. (terminal branches of IA nerve)
Area (s) anesthetized:
Mental n. - Buccal soft tissues anterior to foramen (lower lip & chin)
Incisive n. - Buccal soft tissues, Bone, & Pulp of teeth (Premolars to Incisors)
For a PDL Supplemental Injection - Nerve(s) anesthetized & Area(s) anesthetized? - ANSWER-Nerve (s) anesthetized: Terminal nerve endings at side of injection & Apex of tooth
Area (s) anesthetized: Pulpal & Apical tissues, Soft tissue, & Bone
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