Mosby’s

The problem(s) with topical anesthesia is(are):a. Dosage controlb. Most are esters which makes them susceptible

for allergic reactionsc. Concentrations used exceed concentrations

administered by injectiond. All of the above

Mosby’s

The problem(s) with topical anesthesia is(are):a. Dosage controlb. Most are esters which makes them susceptible

for allergic reactionsc. Concentrations used exceed concentrations

administered by injectiond. 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. Mandibular molarsb. Mandibular 1st and 2nd premolarsc. Maxillary molarsd. 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. Mandibular molarsb. Mandibular 1st and 2nd premolarsc. Maxillary molarsd. Maxillary canines and incisors

Mosby’s

Local anesthetic agents prevent depolarization by:

a. Blocking the sodium–potassium pumpb. Preventing the transfer of K+ ions from exiting the

nerve cell membranec. Preventing transfer of Na+ ions from the interior of

the nerve to the exteriord. 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 pumpb. Preventing the transfer of K+ ions from exiting the

nerve cell membranec. Preventing transfer of Na+ ions from the interior of

the nerve to the exteriord. 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. Allergic reactionsb. Intravascular injectionsc. Traumatic injectionsd. Trismus

Mosby’s

The purpose of aspirating before injecting a local anesthetic solution is to prevent:

a. Allergic reactionsb. Intravascular injectionsc. Traumatic injectionsd. Trismus

Mosby’s

The following injection(s) should be administered when scaling and root planing of a mandibular second molar:

a. Mental nerve blockb. Inferior alveolar nerve blockc. Long buccald. Nasopalatinee. PSA

Mosby’s

The following injection(s) should be administered when scaling and root planing of a mandibular second molar:

a. Mental nerve blockb. Inferior alveolar nerve blockc. Long buccald. Nasopalatinee. PSA

Mosby’s

Which of the following nerves should be adequately anesthetized to scale and root-debride a maxillary first molar?

a. Greater Palatine/PSAb. Long Buccal/Greater Palatine/Nasopalatinec. PSA/MSA/Greater Palatined. ASA/MSA/Greater Palatinee. PSA/MSA/Long Buccal

Mosby’s

Which of the following nerves should be adequately anesthetized to scale and root-debride a maxillary first molar?

a. Greater Palatine/PSAb. Long Buccal/Greater Palatine/Nasopalatinec. PSA/MSA/Greater Palatined. ASA/MSA/Greater Palatinee. 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 blockedc. Myelinated nerves are the first to regain sensationd. 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 blockedc. Myelinated nerves are the first to regain sensationd. Myelinated nerves are the last to be blocked

Mosby’s

The potency of an anesthetic agent is primarily due to its:

a. Water solubilityb. Protein solubilityc. Lipid solubilityd. Carbohydrate solubility

Mosby’s

The potency of an anesthetic agent is primarily due to its:

a. Water solubilityb. Protein solubilityc. Lipid solubilityd. Carbohydrate solubility

Mosby’s

What nerve is involved when anesthetizing the facial gingiva of the maxillary canine?

a. Middle superior alveolar nerveb. Nasopalatine nervec. Infraorbital nerved. Anterior superior alveolar nervee. Inferior alveolar nerve

Mosby’s

What nerve is involved when anesthetizing the facial gingiva of the maxillary canine?

a. Middle superior alveolar nerveb. Nasopalatine nervec. Infraorbital nerved. Anterior superior alveolar nervee. 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 axonb. Increases potassium outflow from inside to outside the nervec. Increases the membrane’s permeability to sodiumd. 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 axonb. Increases potassium outflow from inside to outside the nervec. Increases the membrane’s permeability to sodiumd. 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 anestheticb. The pH rises, thus decreasing available free basec. The pH decreases, thus decreasing available free based. 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 anestheticb. The pH rises, thus decreasing available free basec. The pH decreases, thus decreasing available free based. 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 actionb. It is not titratablec. Rapid and complete recoveryd. 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 actionb. It is not titratablec. Rapid and complete recoveryd. 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. Both statements are TRUEb. Both statements are FALSEc. The 1st is TRUE, the 2nd FALSEd. 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. Both statements are TRUEb. Both statements are FALSEc. The 1st is TRUE, the 2nd FALSEd. The 1st FALSE, 2nd TRUE