Study Points

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Which of the following was the predecessor of the current group of local anesthetics used in dentistry?
- Opium
- Cocaine
- Menthol
- Novocaine
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Local anesthetics are classified as either
- ester or amide type.
- short- or long-lasting.
- first or second generation.
- immediate or delayed release.
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Which of the following statements is TRUE?
- Ester-type local anesthetics have a slightly greater risk of systemic toxicity.
- The injectable local anesthetics commonly used in dentistry today are all classified as amides.
- The risk of an allergic reaction is significantly lower with ester-type local anesthetics compared with amide-types.
- The ability to obtain profound intraoral anesthesia is facilitated with the use of ester formulations compared with amide formulations.
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Local anesthetics used in dentistry induce a temporary loss of sensation in the
- facial nerve.
- abducens nerve.
- trigeminal nerve.
- vestibulocochlear nerve.
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Which of the following is NOT one of the major components of sensory neurons?
- Axon
- Cell body
- Dendrites
- Hypothalamus
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Most commonly, which vasoconstrictor is added to local anesthetics used in dentistry?
- Vasopressin
- Epinephrine
- Levonordefrin
- Norepinephrine
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The inclusion of a vasoconstrictor with a local anesthetic results in
- a shorter duration.
- impaired ability to achieve hemostasis.
- increased depth and profundity of anesthesia.
- quicker systemic absorption of the local anesthetic.
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Which of the following is an absolute contraindication to the use of epinephrine in local anesthetics?
- Unstable angina
- Pheochromocytoma
- Untreated or uncontrolled hypertension
- All of the above
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Which of the following is the most commonly used local anesthetic in the United States?
- Procaine
- Articaine
- Lidocaine
- Bupivacaine
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The onset of anesthesia for 2% lidocaine with 1:100,000 epinephrine is about
- 1 minute.
- 5 minutes.
- 10 minutes.
- 30 minutes.
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Which of the following is the local anesthetic of choice for patients with compromised liver function, including those with hepatitis C or cirrhosis?
- Procaine
- Articaine
- Lidocaine
- Bupivacaine
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Bupivacaine is only available in a
- 0.5% formulation with a 1:200,000 concentration of epinephrine.
- 2% formulation with a 1:50,000 concentration of epinephrine.
- 3% formulation without a vasoconstrictor.
- 4% formulation with a 1:100,000 concentration of epinephrine.
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The maximum recommended dose of bupivacaine for adults and children 12 years of age and older is
- 34 mg per appointment.
- 56 mg per appointment.
- 90 mg per appointment.
- 120 mg per appointment.
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When prilocaine plain is used for maxillary teeth, the duration of pulpal anesthesia is about
- 15 minutes.
- 1 hour.
- 3 hours.
- 6 hours.
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The risk of oral paresthesia after mandibular block is greatest for which of the following local anesthetics?
- Articaine
- Prilocaine
- Lidocaine
- Bupivacaine
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Which of the following is a sign/symptom of methemoglobinemia, a potential complication of prilocaine use?
- Cyanosis
- Tachypnea
- Hyperactivity
- Excessive caries
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The use of mepivacaine 3% plain in children, especially those younger than 5 years of age, should be
- avoided in all cases.
- administered via infiltration.
- started at the greatest safe dose.
- All of the above
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What is the most common topical anesthetic used in dentistry?
- 10% lidocaine patch
- 10% benzocaine spray
- 20% benzocaine gel
- 20% lidocaine microspheres
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Which of the following is a contraindication for the use of phentolamine mesylate, an anesthetic reversal agent?
- Age older than 60 years
- Weight greater than 150 kg (330 lbs)
- A history of angina or myocardial infarction
- Concurrent use with other medications that cause vasoconstriction
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In order to increase pH and buffer local anesthetic solutions, a chairside system has been developed by which a standard cartridge of a local anesthetic solution is mixed with
- acetamidoglycine.
- cholamine chloride.
- an 8.4% sodium bicarbonate solution.
- citric acid and disodium hydrogen phosphate.
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Back to Course Home
Participation Instructions
- Review the course material online or in print.
- Complete the course evaluation.
- Review your Transcript to view and print your Certificate of Completion. Your date of completion will be the date (Pacific Time) the course was electronically submitted for credit, with no exceptions. Partial credit is not available.

Complete Your CE

Local Anesthetics in Dentistry

Study Points

Which of the following was the predecessor of the current group of local anesthetics used in dentistry?

Local anesthetics are classified as either

Which of the following statements is TRUE?

Local anesthetics used in dentistry induce a temporary loss of sensation in the

Which of the following is NOT one of the major components of sensory neurons?

Most commonly, which vasoconstrictor is added to local anesthetics used in dentistry?

The inclusion of a vasoconstrictor with a local anesthetic results in

Which of the following is an absolute contraindication to the use of epinephrine in local anesthetics?

Which of the following is the most commonly used local anesthetic in the United States?

The onset of anesthesia for 2% lidocaine with 1:100,000 epinephrine is about

Which of the following is the local anesthetic of choice for patients with compromised liver function, including those with hepatitis C or cirrhosis?

Bupivacaine is only available in a

The maximum recommended dose of bupivacaine for adults and children 12 years of age and older is

When prilocaine plain is used for maxillary teeth, the duration of pulpal anesthesia is about

The risk of oral paresthesia after mandibular block is greatest for which of the following local anesthetics?

Which of the following is a sign/symptom of methemoglobinemia, a potential complication of prilocaine use?

The use of mepivacaine 3% plain in children, especially those younger than 5 years of age, should be

What is the most common topical anesthetic used in dentistry?

Which of the following is a contraindication for the use of phentolamine mesylate, an anesthetic reversal agent?

In order to increase pH and buffer local anesthetic solutions, a chairside system has been developed by which a standard cartridge of a local anesthetic solution is mixed with