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Which of the following local anesthetic belongs to ester group?

A. Lidocaine B. Mepivacaine C. Prilocaine D. Benzocaine

Which of the following amides is used as a topical anesthetic?

A. Lidocaine B. Mepivacaine C. Prilocaine D. Articaine

Local anesthetic molecules have access to the nerve membrane at the _______________.

A. nasopalatine process B. palatine process C. nodes of Ranvier D. Hering-Breur reflex

Which of the following term best relates to local anesthetic?

A. Vasoconstrictors B. Vasodilators C. Highly alkaline D. Hemostatic agents

Vasoconstrictors are added to local anesthesia:

A. To counteract the vasodilatory action B. To fasten the removal of local anesthetic C. To decrease the potential of local anesthetic D. To improve the comfort

Which of these anesthetics provides the longest duration of soft tissue anesthesia during a mandibular block?

A. Lidocaine 2% with 1:100,000 epinephrine B. Articaine 4% with 1:100,000 epinephrine C. Prilocaine 4% plan D. Bupivacaine 0.5% with 1:200,000 epinephrine

Which of these anesthetics provides the longest duration of pulpal anesthesia during a maxillary infiltration?

A. Lidocaine 2% with 1:100,000 epinephrine B. Mepivacaine 3% plain C. Prilocaine 4% plain D. Bupivacaine 0.5% with 1:200,000 epinephrine

The maximum dosage for lidocaine 2% with 1:100,000 epinephrine is 2.0 mg/lb. What is the maximum number of cartridges of anesthetic solution that can be safely administered to a 30 pound patient?

A. 1.1 cartridges B. 1.67 cartridges C. 2.25 cartridges D. 3.0 cartridges

Which statement is true regarding the local anesthetic?

A. Its action does not include depressant effects on the central nervous system B. Its action does not include depressant effects on the cardiovascular system C. Local anesthetics are bio transformed in the kidney and excreted in liver D. Local anesthetics are bio transformed in the liver and excreted in kidneys

A patient presents with a documented allergy to procaine (an ester). Which of the following anesthetics should be avoided?

A. Injectable lidocaine with epinephrine B. Topical lidocaine C. Novocaine D. Injectable lidocaine without epinephrine

Which anesthetic is contraindicated in a child under 2 years?

A. Injectable lidocaine B. Topical lidocaine C. Topical benzocaine D. Injectable articaine

A patient presents with a documented allergy to bisulfites. Which of the following anesthetics should be avoided?

A. Lidocaine 2% with 1:100,000 epinephrine B. Topical lidocaine C. Topical benzocaine D. Prilocaine 4% plain

A teenage patient presents for treatment admits to using cocaine daily. Which of the following anesthetics should be avoided?

A. Lidocaine 2% with 1:100,000 epinephrine B. Topical lidocaine C. Topical benzocaine D. Prilocaine 4% plain

A clinician is about to load a cartridge of local anesthetic solution into a syringe and notices that the rubber stopper is flush with the lip of the glass cylinder. The dentist should:

A. Use the cartridge as intended. B. Push the rubber stopper into the glass cylinder using the handle of a mouth mirror. C. Discard the cartridge. D. Heat the cartridge to room temperature.

For most injections the bevel of the needle:

A. Should be oriented toward soft tissue. B. Should be oriented toward bone. C. The orientation is of no consequence. D. Should be at a maximum angle with the long axis of the needle.

Which of the following needle gauge has the smallest internal diameter?

A. 21 gauge B. 25 gauge C. 27 gauge D. 30 gauge

Needles should not be bent except for:

A. Infiltration injections B. Intrapulpal injections C. Block injections D. Intraosseous injections

Topical anesthetics are effective up to a depth of:

A. 1.0 – 2.0 mm B. 2.0 – 3.0 mm C. 3.0 – 4.0 mm D. 4.0 – 5.0 mm

The correct position of a patient in the dental chair during local anesthetic administration is:

A. The head and heart parallel to the floor and the feet slightly elevated. B. The head and heart parallel to the floor and the feet slightly lower than the rest of the body. C. The patient in the Trendelenburg position. D. The patient sitting upright.

The temperature of anesthetic solution during administration should be:

A. As cold as possible without freezing B. Between room and body temperature C. Above 105 degrees Fahrenheit D. Of no significance to the patient's comfort

When administrating a local anesthetic injection to a child:

A. The child should be asked to close their eyes and open their mouth. B. The child should be shown the uncapped syringe and told it will only hurt a little. C. The assistant passes the uncapped syringe behind the patient's head. D. It doesn't matter what you say or do the child is going to cry.

In a pediatric patient the mandibular foramen is:

A. Situated a lower level and more posterior than in an adult. B. At the same height as an adult. C. Higher and more anterior than in an adult. D. Lower and more anterior than in an adult.

In studies comparing the effectiveness of mandibular infiltration to mandibular block in primary teeth it was found that:

A. The two techniques were equally effective for all dental treatment. B. The two techniques were equally effective for all restorative treatment, but the mandibular block was more effective for pulpotomies and extractions than mandibular infiltration. C. The two techniques were equally effective for all restorative treatment, but the mandibular infiltration was more effective for pulpotomies and extractions than the mandibular block. D. The mandibular block was more effective for all procedures than mandibular infiltration.

The middle superior alveolar nerve block is effective in completely anesthetizing:

A. All teeth distal to the maxillary cuspid B. The permanent molars C. The maxillary first primary molars D. The maxillary second primary molars

Phentolamine Mesylate (Ora Verse) is not recommended for use in children aged:

A. Less than 3 years B. 3 to 6 years C. 6 to 9 years D. Over 9 years.

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