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WREB CANDIDATE GUIDE QUIZ
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WREB CANDIDATE GUIDE QUIZ
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WREB EXAM QUESTIONS AND ANSWERSLocal anesthetic mainly
A. Decrease the rate of depolarization
B. Lower the threshold potential
C. Accelerate the rate of repolarization
D. All the above - Answers-A. Decrease the rate of depolarization
Which injection is needed to anesthetize the palatal tissue around the left maxillary
molar
A. Nasopalatine nerve block
B. Greater palatine nerve block
C. Posterior superior alveolar nerve block
D. Buccal nerve block - Answers-B. greater palatine (GP)
A hematoma quickly appeared after a posterior superior alveolar nerve block. Which of
the following may have caused the hematoma?
A. The solution was deposited into a blood vessel
B. The needle penetrated the parotid gland
C. The needle penetrated the pterygoid plexus of veins
D. The needle irritated the muscles of the cheek - Answers-c. needle penetrated the
pterygoid plexus of veins
At the end of the dental appointment, you noticed that one side of the patients face is
"drooping". What could have caused this change?
A. Local anesthetic was deposited into the parotid gland
B. Muscle spasms occurred from opening the jaw for too long
C. The needle nicked a blood vessel
D. The patient is experiencing syncope - Answers-A. Local anesthetic was deposited
into the parotid gland
Which of the following provides sensory innervation to the soft palate?
A. Lesser palatine nerve
B. Greater palatine nerve
C. Nasopalatine nerve
D. Posterior superior alveolar nerve - Answers-a. Lesser palatine nerve
Form the administration of an inferior alveolar nerve block, how much of the long needle
should penetrate the tissue?
A. 1/2
B. 1.4
C. 2/3
, D. Full length - Answers-C. 2/3
What is the reasoning behind taking blood pressure before administering local
anesthesia
A. To establish a base line
B. To avoid malpractice
C. To diagnose hypertension
D. To monitor anxiety - Answers-A. To establish a baseline
What happens during the depolarization phase of a nerve cell?
A. Sodium ion exit the nerve membrane
B. Sodium ions enter the nerve membrane
C. Both sodium ions an potassium ions enter the nerve membrane
D. Both sodium ions an potassium ions exit the nerve membrane - Answers-B. Sodium
ions enter the nerve membrane
What is the needle insertion site for the buccal nerve block?
A. Mucogingival junction around the mandibular molars
B. Mucobuccal fold around the mandibular first molar
C. Buccal mucosa around the mandibular last molar
D. Buccal mucosa around the mandibular pre molars - Answers-C. Buccal mucosa
around the mandibular last molar
Which of the following foramen is the opening for the mandibular division of the
trigeminal nerve
A. Foramen rotundum
B. Foramen ovale
C. Foramen spinosum
D. Foramen magnum - Answers-b. foramen ovale
Which of the following foramen is associated with the maxillary division of the trigeminal
nerve?
A. Foramen rotundum
B. Foramen ovale
C. Foramen caecum
D. Foramen lacerum - Answers-A. foramen rotundum
A vasoconstrictor can do all of the following EXCEPT:
A. Increase the duration of anesthesia
B. Decrease the bleeding at site
C. Increase the absorption rate of the anesthetic into the vascular system
D. Decrease the likelihood of adverse reactions - Answers-c. Increase the absorption
rate of the anesthetic into the vascular system
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