Question 1

Which of the following angulations of the needle MUST be followed during the administration of the posterior superior local anesthetic nerve block?

Accepted Answer

A)  Superiorly at approximately 45 degrees and medially at approximately 90 degrees to the occlusal plane
B)  Superiorly at approximately 90 degrees and medially at approximately 45 degrees to the occlusal plane
C)  Superiorly at approximately 45 degrees and medially parallel to the occlusal plane
D)  Superiorly at approximately 45 degrees and medially at approximately 45 degrees to the occlusal plane D

Question 2

Before periodontal scaling near the periodontal tissue clefting present on the facial surface of ALL the mandibular incisors of a patient,which local anesthetic block(s)would be the BEST to have administered bilaterally?

Accepted Answer

A)  Infraorbital block
B)  Incisive block
C)  Mental block
D)  Inferior alveolar block B

Question 3

From the following list,select those that are anatomic factors involved in providing MORE clinically effective maxillary arch anesthesia than mandibular arch anesthesia.(Select all that apply. )

Accepted Answer

A)  Thinner facial cortical plate over teeth
B)  Less variation exists in anatomy
C)  More variation exists in anatomy
D)  Thicker facial cortical plate over teeth A,B

Question 4

When administering a local anesthetic agent to a patient's teeth and their related dental structures,which three bones of the head and neck have the landmarks essential for clinically effective injection technique?

Accepted Answer

A)  Maxillae,mandible,and temporal bones
B)  Maxillae,mandible,and zygomatic bones
C)  Maxillae,mandible,and palatine bones
D)  Maxillae,mandible,and sphenoid bones

Question 5

Less variation exists in the anatomy of the maxillae and palatine bones and associated nerves with respect to local anesthetic landmarks as compared with similar mandibular structures,making the maxillary injections less routine and usually with the need for any troubleshooting of failure cases.

Accepted Answer

A)  Both the statement and the reason are correct and related.
B)  Both the statement and the reason are correct but NOT related.
C)  The statement is correct,but the reason is NOT.
D)  The statement is NOT correct,but the reason is correct.

Question 6

Which of the following local anesthetic nerve blocks can be involved in the spread of infection to the cavernous sinus?

Accepted Answer

A)  Anterior superior alveolar nerve block
B)  Inferior alveolar nerve block
C)  Posterior superior alveolar nerve block
D)  Infraorbital nerve block

Question 7

The dental professional MUST know the location of certain adjacent soft tissue structures,such as major blood vessels and glandular tissue,so as to make sure to allow for injecting these structures.

Accepted Answer

A)  Both the statement and the reason are correct and related.
B)  Both the statement and the reason are correct but NOT related.
C)  The statement is correct,but the reason is NOT.
D)  The statement is NOT correct,but the reason is correct.

Question 8

Which of the following complications can result from a greater palatine local anesthetic nerve block?

Accepted Answer

A)  Cheek bite by patient
B)  Anesthesia of the upper lip
C)  Stimulation of the gag reflex
D)  Hematoma in the infratemporal fossa

Question 9

A 9-year-old child is having a restoration placed on the occlusal surface of the mandibular left first molar.Which of the following heights of the inferior alveolar local anesthetic nerve block injection sites should be followed during the pain control procedure?

Accepted Answer

A)  Approximately 6 to 10 mm superior to the occlusal plane of the mandibular molars
B)  Slightly inferior to the occlusal plane of the mandibular molars
C)  At the same height as the occlusal plane of the mandibular molars
D)  More than approximately 10 mm superior to the occlusal plane of the mandibular molars

Question 10

From the following list of oral cavity landmarks,select those that need to be noted before administering a clinically effective inferior alveolar nerve block.(Select all that apply. )

Accepted Answer

A)  Occlusal plane
B)  Maxillary tuberosity
C)  Pterygomandibular fold
D)  Coronoid notch

Question 11

Which of the following ligaments can act as a barrier to the inferior alveolar nerve block if mandibular bone is NOT contacted during the injection?

Accepted Answer

A)  Sphenomandibular ligament
B)  Temporomandibular ligament
C)  Stylomandibular ligament
D)  Anterior cruciate ligament

Question 12

Which local anesthetic nerve block would be necessary for a patient undergoing oral surgery on an edentulous left mandibular alveolar process in the area of the extracted molars?

Accepted Answer

A)  Left buccal nerve block
B)  Right buccal nerve block
C)  Left mental nerve block
D)  Right infraorbital nerve block

Question 13

Which of the following are included in the linear relationship noted on the face that can assist with the CORRECT administration of the infraorbital block? (Select all that apply. )

Accepted Answer

A)  Ipsilateral supraorbital notch
B)  Pupil of the eye looking forward
C)  Midpoint of the infraorbital notch
D)  Posterior superior alveolar foramina

Question 14

As a result of a bicycle accident,a patient has suffered trauma to the right upper lip and maxillary right central incisor.Which of the following local anesthetic blocks may be used on the involved side when treating the injured tissue?

Accepted Answer

A)  Anterior superior alveolar,infraorbital,and incisive nerve blocks
B)  Infraorbital and nasopalatine nerve blocks
C)  Anterior superior alveolar,middle superior alveolar,and greater palatine nerve blocks
D)  Infraorbital,greater palatine,and Gow-Gates mandibular nerve blocks

Question 15

Which of the following local anesthetic nerve blocks uses the apex of the maxillary canine for a landmark during administration?

Accepted Answer

A)  Infraorbital nerve block
B)  Anterior superior alveolar nerve block
C)  Middle superior alveolar nerve block
D)  Posterior superior alveolar nerve block

Question 16

Which of the following complications can occur during an incorrect administration of the inferior alveolar local anesthetic nerve block,resulting in inability to close the eyelid?

Accepted Answer

A)  Motor function of the abducens nerve
B)  Motor function of the facial nerve
C)  Motor function of the oculomotor nerve
D)  Sensory function of the facial nerve

Question 17

A restoration will be placed on the occlusal surface of the maxillary first premolar,but no rubber dam will be used.However,which of the following local anesthetic nerve blocks MUST be administered?

Accepted Answer

A)  Anterior superior alveolar nerve block
B)  Middle superior alveolar nerve block
C)  Greater palatine nerve block
D)  Inferior alveolar nerve block

Question 18

Which of the following local anesthesia nerve blocks would benefit from using a topical anesthetic-laced long cotton tip applicator to palpate the injection site as if it were the needle and syringe? (Select all that apply. )

Accepted Answer

A)  Posterior superior alveolar block
B)  Inferior superior alveolar block
C)  Greater palatine block
D)  Nasopalatine block
E)   None of the above

Question 19

Which of the following local anesthesia nerve blocks can be used during cosmetic restorative procedures because,after procedures are completed,the clinician can immediately and accurately access the patient's smile line?

Accepted Answer

A)  Anterior superior alveolar nerve block
B)  Posterior superior alveolar nerve block
C)  Anterior middle superior alveolar nerve block
D)  Middle superior alveolar nerve block

Question 20

Palatal anesthesia usually involves anesthesia of the soft and hard tissue of the periodontium of the palatal area such as the gingival tissue,periodontal ligament,and alveolar process.Palatal anesthesia usually does NOT provide any pulpal anesthesia to the maxillary teeth or associated facial or buccal gingival tissue.

Accepted Answer

A)  Both statements are true.
B)  Both statements are false.
C)  The first statement is true;the second is false.
D)  The first statement is false;the second is true.
E)  NEITHER the statement NOR the reason is correct.

Exam 9: Anatomy of Local Anesthesia