Deck 9: Anatomy of Local Anesthesia

Question 1

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

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

Answer 1

B

Question 2

Which of the following local anesthetic nerve blocks anesthetizes the buccal gingival tissue of the maxillary first molar?

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

Answer 2

D

Question 3

Which of the following locations is the injection site for the inferior alveolar local anesthetic nerve block?

A) Medial to the pterygomandibular fold
B) Lateral to the pterygomandibular fold
C) Superior to the pterygomandibular fold
D) Inferior to the pterygomandibular fold

Answer 3

B

Question 4

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

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

Question 5

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

A) Anterior superior alveolar, infraorbital, and incisive nerve blocks
B) Anterior superior alveolar, 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 6

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 sites should be followed during the pain control procedure?

A) Only 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 10 mm superior to the occlusal plane of the mandibular molars

Question 7

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

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 8

When administering the inferior alveolar local anesthetic nerve block, it is important to contact bone because this will decrease the risk of depositing a local anesthetic agent into the parotid salivary gland.

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.
E) NEITHER the statement NOR the reason is correct.

Question 9

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

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 10

Which of the following local anesthesia nerve blocks is usually NOT used bilaterally due to possible complications associated with swallowing and speech?

A) Incisive nerve block
B) Inferior alveolar nerve block
C) Posterior superior alveolar nerve block
D) Greater palatine nerve block

Question 11

Orientation of the syringe for the anterior middle superior alveolar nerve block SHOULD be from the contralateral premolars. The angle of the needle SHOULD be placed at 45 degrees to the injection site.

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.

Question 12

A restoration will be placed on the distal surface of the maxillary first premolar. Which of the following local anesthetic nerve blocks MUST be administered?

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

Question 13

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

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

Question 14

Which of the following local anesthetic nerve blocks would provide the GREATEST area of anesthesia to a maxillary quadrant?

A) Anterior superior alveolar, posterior superior alveolar, and greater palatine nerve blocks
B) Middle superior alveolar and greater palatine nerve blocks
C) Middle superior alveolar, posterior superior alveolar, and greater palatine nerve blocks
D) Anterior middle superior alveolar and posterior superior alveolar nerve blocks

Question 15

Which of the following descriptions concerning the injection site for the anterior middle superior alveolar local anesthetic nerve block is CORRECT?

A) Midway between the median palatine raphe and the palatal gingival margin of the maxillary premolars
B) About 10 mm medial and directly superior to the palatal gingival margin of the maxillary third molar, anterior to the depression of the greater palatine foramen
C) At the height of the mucobuccal fold at the apex of the maxillary canine
D) At the height of the mucobuccal fold at the apex of the maxillary first premolar

Question 16

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?

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

Question 17

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

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

Question 18

Only one injection is necessary when anesthetizing BOTH the right and left maxillary anterior palatal gingival tissue. Pressure anesthesia during the nasopalatine local anesthetic nerve block is NOT helpful with patient comfort.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second statement is false.
D) The first statement is false; the second statement is true.

Question 19

A patient is missing the mandibular right molars, and surgery is to be performed on the remaining mandibular teeth across the arch. Which combination of local anesthetic nerve blocks would MOST likely be administered and still be successful?

A) Right mental and left inferior alveolar nerve blocks
B) Left inferior alveolar and right incisive nerve blocks
C) Right posterior superior alveolar and left inferior alveolar nerve blocks
D) Right mental and left incisive nerve blocks
E) Bilateral inferior alveolar nerve blocks

Question 20

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

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 21

From the following list of landmarks, select those which are noted when administering the posterior superior alveolar nerve block by dental professionals.

A) Mucobuccal fold
B) Coronoid notch
C) Maxillary first molar
D) Maxillary tuberosity

Question 22

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.

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.
E) NEITHER the statement NOR the reason is correct.

Question 23

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.

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.
E) NEITHER the statement NOR the reason is correct.

Question 24

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 bone. Palatal anesthesia usually does NOT provide any pulpal anesthesia to the maxillary teeth or associated facial or buccal gingival tissue.

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.

Question 25

From the following list of descriptions, select those that can be COMMONLY used when describing paresthesia and its progression.

A) Abnormal area sensation
B) Burning or prickling
C) Can occur after local anesthesia
D) Can occur with infections
E) Can occur with nonsurgical procedures

Question 26

There MUST never be an injection through an area with an abscess, cellulitis, or osteomyelitis so as to prevent the spread of dental infection.

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.
E) NEITHER the statement NOR the reason is correct.

Question 27

Which of the following local anesthetic nerve blocks MAINLY uses an extraoral landmark on the face when locating the injection site?

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

Question 28

From the following list of landmarks, select those which are noted by dental professionals when administering the inferior alveolar nerve block by dental professionals.

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

Question 29

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

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

Question 30

From the following list of descriptions, select those that are factors involved in maxillary nerve anesthesia.

A) Thinner facial surface bone over teeth
B) Less variation exists in anatomy
C) More variation exists in anatomy
D) Thicker facial surface bone over teeth

Question 31

There is ONLY one type of local anesthetic injection used commonly in dentistry, the nerve block. The type of injection used for a given dental procedure is determined by the type and length of the procedure.

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.

Question 32

From the following list of complications involving the eyelid, nose, and upper lip, select the MOST common ones associated with the infraorbital nerve block.

A) Hematoma
B) Stimulation of the gag reflex
C) Tingling
D) Numbness