den200 final
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| ____________ nerve block anesthesia provides anesthesia to the buccal soft tissues closest to the mandibular molars. | Buccal
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| What nerve is anesthetized for tooth #31? | Inferior alveolar nerve
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| In which stage of anesthesia is the patient relaxed and fully conscious? | Stage I
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| The time from when the local anesthetic takes complete effect until the complete reversal of anesthesia is called the __________ of the anesthetic agent. | duration
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| The gauge of the needle refers to the thickness of the needle; the larger the gauge, the ____________ the needle. | thinner
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| To be certain that the anesthetic solution is not injected into a blood vessel, the dentist | always aspirates before depositing any solution.
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| Local anesthetic agents are not effective when injected into an area where a tooth or soft tissue is infected because | an increase of lymphocytes, in the area to combat the infection, will interfere with the effectiveness of the anesthetic solution by increasing acidity.
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| What can cause paresthesia? | Trauma to the nerve
Bleeding into or around the nerve
Contaminated anesthetic solution
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| A 30-gauge needle would be a ____________ needle than a 27-gauge needle. | thinner
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| The tank or cylinder of __________ is always color-coded blue. | nitrous oxide
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| In patients with an acute infection in a tooth or soft tissue, local anesthetics are not as effective because of an increase | in lymphocytes (white blood cells).
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| During the loading of an anesthetic syringe, the ___________ is loaded first. | anesthetic cartridge
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| The most common form of topical anesthetic used to control a gag reflex during an intraoral radiographic procedure is | spray.
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| Which of the following is true regarding the use of electronic anesthesia? | There are three pads used.
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| Injecting the anesthetic solution directly into a small, isolated are of the tissue at the site of the dental procedure, generally used on the maxillary teeth, is called a(n) | local infiltration anesthesia.
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| The length of time from injection to complete and effective conduction blockage is called | induction.
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| One advantage of nitrous oxide use in a dental setting is that | it is the only method of conscious sedation where the patient can drive herself or himself home following the appointment.
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| The condition in which numbness remains after the effects of the local anesthetic solutions should have worn off is | paresthesia.
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| Current dental office nitrous oxide/oxygen flow meters have a fail-safe system that will stop the flow of N2O whenever the percentage of O2 drops to below ______ percent. | 30
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| The anesthetic syringe consists of all of the following parts except a | rubber stopper.
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| The use of an anesthetic solution without a vasoconstrictor is recommended for patients with a history of | recent myocardial infarction.
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| To provide optimal effectiveness, an ointment type of topical anesthetic should remain on the site of injection for a minimum of | 15 to 30 seconds.
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| Anesthesia is defined as | the temporary loss of feeling or sensation.
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| The agents that provide a temporary numbing effect on nerve endings located on the surface of the oral mucosa are | topical anesthetics.
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| The most frequently used form of pain control in dentistry is | local anesthesia.
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| What part of the anesthetic syringe must engage so that aspiration can occur during the injection? | Harpoon
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| Most surgical procedures are scheduled in the early morning, because | patients must not eat or drink for 8 to 12 hours before receiving general anesthesia.
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| Used or contaminated needles and cartridges are discarded in the | sharps container.
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| General anesthesia is most safely administered in the | hospital.
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| Each of the following is an example of non-pharmacologic relaxation techniques except | nitrous oxide.
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