Mosby’s
The problem(s) with topical anesthesia is(are):
a. Dosage control
b. Most are esters which makes them susceptible
for allergic reactions
c. Concentrations used exceed concentrations
administered by injection
d. All of the above
Mosby’s
The problem(s) with topical anesthesia is(are):
a. Dosage control
b. Most are esters which makes them susceptible
for allergic reactions
c. Concentrations used exceed concentrations
administered by injection
d. All of the above
Mosby’s
After a clinician administers a local anesthetic
agent near the infraorbital foramen landmark
attempting an ASA injection, the following
structures will be anesthetized:
a.
b.
c.
d.
Mandibular molars
Mandibular 1st and 2nd premolars
Maxillary molars
Maxillary canines and incisors
Mosby’s
After a clinician administers a local anesthetic
agent near the infraorbital foramen landmark
attempting an ASA injection, the following
structures will be anesthetized:
a.
b.
c.
d.
Mandibular molars
Mandibular 1st and 2nd premolars
Maxillary molars
Maxillary canines and incisors
Mosby’s
Local anesthetic agents prevent
depolarization by:
a. Blocking the sodium–potassium pump
b. Preventing the transfer of K+ ions from exiting the
nerve cell membrane
c. Preventing transfer of Na+ ions from the interior of
the nerve to the exterior
d. Preventing transfer of Na+ ions from the exterior of
the nerve to the interior
Mosby’s
Local anesthetic agents prevent
depolarization by:
a. Blocking the sodium–potassium pump
b. Preventing the transfer of K+ ions from exiting the
nerve cell membrane
c. Preventing transfer of Na+ ions from the interior of
the nerve to the exterior
d. Preventing transfer of Na+ ions from the exterior of
the nerve to the interior
Mosby’s
The purpose of aspirating before injecting a local
anesthetic solution is to prevent:
a.
b.
c.
d.
Allergic reactions
Intravascular injections
Traumatic injections
Trismus
Mosby’s
The purpose of aspirating before injecting a local
anesthetic solution is to prevent:
a.
b.
c.
d.
Allergic reactions
Intravascular injections
Traumatic injections
Trismus
Mosby’s
The following injection(s) should be
administered when scaling and root planing of
a mandibular second molar:
a.
b.
c.
d.
e.
Mental nerve block
Inferior alveolar nerve block
Long buccal
Nasopalatine
PSA
Mosby’s
The following injection(s) should be
administered when scaling and root planing of
a mandibular second molar:
a.
b.
c.
d.
e.
Mental nerve block
Inferior alveolar nerve block
Long buccal
Nasopalatine
PSA
Mosby’s
Which of the following nerves should be
adequately anesthetized to scale and rootdebride a maxillary first molar?
a.
b.
c.
d.
e.
Greater Palatine/PSA
Long Buccal/Greater Palatine/Nasopalatine
PSA/MSA/Greater Palatine
ASA/MSA/Greater Palatine
PSA/MSA/Long Buccal
Mosby’s
Which of the following nerves should be
adequately anesthetized to scale and rootdebride a maxillary first molar?
a.
b.
c.
d.
e.
Greater Palatine/PSA
Long Buccal/Greater Palatine/Nasopalatine
PSA/MSA/Greater Palatine
ASA/MSA/Greater Palatine
PSA/MSA/Long Buccal
Mosby’s
The type and size of a nerve play an important
part in the development of adequate anesthesia.
All of the following are true, except one. Which
one is this exception?
a. Myelinated nerves require a greater concentration
to be blocked
b. Myelinated nerves require less time to be blocked
c. Myelinated nerves are the first to regain sensation
d. Myelinated nerves are the last to be blocked
Mosby’s
The type and size of a nerve play an important
part in the development of adequate anesthesia.
All of the following are true, except one. Which
one is this exception?
a. Myelinated nerves require a greater concentration
to be blocked
b. Myelinated nerves require less time to be blocked
c. Myelinated nerves are the first to regain sensation
d. Myelinated nerves are the last to be blocked
Mosby’s
The potency of an anesthetic agent is primarily
due to its:
a.
b.
c.
d.
Water solubility
Protein solubility
Lipid solubility
Carbohydrate solubility
Mosby’s
The potency of an anesthetic agent is primarily
due to its:
a.
b.
c.
d.
Water solubility
Protein solubility
Lipid solubility
Carbohydrate solubility
Mosby’s
What nerve is involved when anesthetizing the
facial gingiva of the maxillary canine?
a.
b.
c.
d.
e.
Middle superior alveolar nerve
Nasopalatine nerve
Infraorbital nerve
Anterior superior alveolar nerve
Inferior alveolar nerve
Mosby’s
What nerve is involved when anesthetizing the
facial gingiva of the maxillary canine?
a.
b.
c.
d.
e.
Middle superior alveolar nerve
Nasopalatine nerve
Infraorbital nerve
Anterior superior alveolar nerve
Inferior alveolar nerve
Dental Decks
Which of the following statements best
describes the mechanism of action of local
anesthetics on the nerve axon?
a. Decreases sodium uptake through sodium
channels of the axon
b. Increases potassium outflow from inside to
outside the nerve
c. Increases the membrane’s permeability to sodium
d. Increases the excitability of the nerve axon
Dental Decks
Which of the following statements best
describes the mechanism of action of local
anesthetics on the nerve axon?
a. Decreases sodium uptake through sodium
channels of the axon
b. Increases potassium outflow from inside to
outside the nerve
c. Increases the membrane’s permeability to sodium
d. Increases the excitability of the nerve axon
Dental Decks
Local anesthetics theoretically should be less
effective in acutely inflamed tissue than in
normal tissue because in inflamed tissue what
happens?
a. The pH rises, thus inactivating the anesthetic
b. The pH rises, thus decreasing available free base
c. The pH decreases, thus decreasing available free
base
d. The pH remains the same, the extracellular fluid
dilutes the anesthetic
Dental Decks
Local anesthetics theoretically should be less
effective in acutely inflamed tissue than in
normal tissue because in inflamed tissue what
happens?
a. The pH rises, thus inactivating the anesthetic
b. The pH rises, thus decreasing available free base
c. The pH decreases, thus decreasing available free
base
d. The pH remains the same, the extracellular fluid
dilutes the anesthetic
Dental Decks
All of the following are advantages of using
nitrous oxide analgesia EXCEPT one. Which one
is the EXCEPTION?
a. Rapid onset of action
b. It is not titratable
c. Rapid and complete recovery
d. Elevates pain threshold
Dental Decks
All of the following are advantages of using
nitrous oxide analgesia EXCEPT one. Which one
is the EXCEPTION?
a. Rapid onset of action
b. It is not titratable
c. Rapid and complete recovery
d. Elevates pain threshold
Dental Decks
Classis studies with early anesthetics indicates the presence
of four stages, which are differentiated through increasing
influence on reflex activity, muscle tone, and respiration.
Stage I and II constitute anesthetic induction; keeping the
patient at stage III is anesthetic maintenance.
a.
b.
c.
d.
Both statements are TRUE
Both statements are FALSE
The 1st is TRUE, the 2nd FALSE
The 1st FALSE, 2nd TRUE
Dental Decks
Classis studies with early anesthetics indicates the presence
of four stages, which are differentiated through increasing
influence on reflex activity, muscle tone, and respiration.
Stage I and II constitute anesthetic induction; keeping the
patient at stage III is anesthetic maintenance.
a.
b.
c.
d.
Both statements are TRUE
Both statements are FALSE
The 1st is TRUE, the 2nd FALSE
The 1st FALSE, 2nd TRUE