Chapter 33

Question 1

The posterior superior alveolar nerve block provides what type of anesthesia for the maxillary third second and first molars and associated buccal soft tissue?

Answer 1

Pulpal

Question 2

What is the appropriate method for recapping the anesthetic needle?

Answer 2

One-handed scoop

Question 3

Higher gauge number of a needle

Answer 3

Smaller the diameter of the lumen

Question 4

Trismus is the limited ability to open a jaw or discomfort of the jaw caused by muscle spasms due to contact with the medial masseter muscle during an injection. Avoidance of multiple injections and use of non-traumatic techniques can minimize the occurrence.

Answer 4

First statement is false, second statement is true

Question 5

A positive aspiration occurs when blood is seen flowing into the cartridge. When this occurs, the needle and cartridge should be replaced to determine the results of subsequent aspirations.

Answer 5

Both statements are true

Question 6

The nasopalatine nerve is a branch of what nerve?

Answer 6

Pterygopalatine nerve

Question 7

Efferent nerve branches carry information

Answer 7

Away from the CNS to the periphery of the body

Question 8

What is the insertion site for the middle superior alveolar block?

Answer 8

Over second premolar

Question 9

The average length of a long needle is

Answer 9

32mm

Question 10

What happens to the pH of blood when infection is present?

Answer 10

Decreases to an acidic 6.5

Question 11

To ensure that the anesthetic is not deposited into a blood vessel the clinician should

Answer 11

Aspirate?

Question 12

Which branch of the mandibular nerve is an afferent nerve that innervates the skin of the cheek, buccal mucosa, and buccal gingiva of the mandibular molars?

Answer 12

Buccal nerve

Question 13

Which of the following are benefits of including a vasoconstrictor with the anesthetic?

Answer 13

Slow absorption, decreases systemic toxicity, prolonged duration

Question 14

Local anesthesia for the mandibular division of the trigeminal nerve is more often successful that for the maxillary division, because the maxillary division has more variations and greater density of the maxillary and palatal bones.

Answer 14

Both statements are false

Question 15

The mental nerve innervates the pulpal tissue of the pre-molars, canines, and incisors. The incisive nerve innervates the buccal mucosa anterior to the mental foramen to the midline and the lower lip and chin to the midline.

Answer 15

Both statements are false

Question 16

Infiltration anesthesia is an injection that supplies anesthesia to multiple teeth. Nerve block anesthesia provides anesthesia to an area of a few centimeters.

Answer 16

Both statements are false

Question 17

Middle superior alveolar nerve is an afferent nerve that innervates the maxillary Premolars and often the mesial buccal root of what tooth?

Answer 17

Maxillary first molar

Question 18

Bases have a lower hydrogen ion concentration and can except hydrogen ions. Acids have a higher hydrogen ion concentration and want to attract more hydrogen ions.

Answer 18

First statement is true, second statement is false

Question 19

What is the recommended rate for deposition of local anesthetic?

Answer 19

1-2 minutes

Question 20

What class of drugs is contraindicated with the use of levonordefrin?

Answer 20

Tricyclic antidepressants

Question 21

The posterior superior alveolar nerve block provides anesthesia for which of the following?

Answer 21

Pulpal/ soft tissue (mucobuccal fold, maxillary tuberosity, zygomatic process)

Question 22

Infection in an area can prevent the accumulation of affective concentrations of local anesthetic solution because of

Answer 22

Increased vascularity and dilution of the anesthetic drug?

Question 23

Nerve impulses are electrical in nature and occurs when a stimulus is applied to a depolarized nerve. The nerve in this resting state has a large number of sodium ions on the outside and a large number of potassium ions on the inside.

Answer 23

First statement is false, second statement is true

Question 24

Epinephrine doses should be minimal for a patient taking tricyclic antidepressants, because epinephrine administration increases this individuals risk for developing ischemia

Answer 24

First statement is true, second statement is false

Question 25

Three divisions of V cranial nerve

Answer 25

Maxillary, mandibular, ophthalmic

Question 26

Anterior superior alveolar injection is recommended for anesthesia of the

Answer 26

Pulpal/ soft tissue (mucobuccal fold, maxillary tuberosity, zygomatic process)

Question 27

The concepts of pH refers to the acid base balance within intracellular and extracellular fluids. The goal of the body is to maintain what kind of environment?

Answer 27

Homeostatic

Question 28

What is another term for metabolism, the process by which the local anesthetic drug is transformed from an active drive to an inactive substance?

Answer 28

Biotransformation