1. The most frequently used form of pain control in dentistry is:: local anesthe- sia
2. is added to a local anesthetic agent to slow down the in take of the
agent and increase the duration of action.: a vasoconstrictor
3. A short-acting local anesthetic agent can last approximately min-
utes.: 30
4. The part of the anesthetic syringe that locks into the rubber stopper of the
anesthetic cartridge so that the stopper can be retracted by pulling back on the piston
rod is:: harpoon
5. The color-coding system for anesthetic cartridges allows the practitioner to select
the correct anesthetic solution by distinguishing the correct:: type and concentration
of solution and concentration of vasoconstrictor
6. Nitrous oxide/oxygen analgesia used in dentistry dates back to 1844 and is also
know as:: inhalation sedation
7. Which of the following must be used to protect dental personnel from the
occupational risks of N2O (nitrous oxide) released into the treatment room?:
scavenger-type patient masks that must fit well and not leak
8. Nitrous oxide administration always begins and ends with what?: the patient on
100% oxygen
9. The different levels of consciousness and unconsciousness are referred to as
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, Pre-clinical Dental Assistant Theory - Exam
stages of anesthesia; these stages include all of the following except stage:: III
(cardiac arrest)
10. Which type of needed would typically be used for a maxillary injection?: -
short
11.In patients with an acute infection of a tooth or soft tissue, local anesthetics are not
as effective because of:: decrease in the pH
12.What is the material of choice when restoring a class III or class IV restora- tion?:
composite
13.Which of the following statements is true?: the class V lesion location will
determine the type of restorative material selected
14.A veneer is placed on which surface of the tooth?: facial
15.What classification of restoration involves the proximal surface of a max- illary
incisor and includes the incisal angle?: IV
16.A comprehensive class II restoration can involve as many as
surfaces of a tooth.: 4
17.A direct technique veneer is made of and an indirect technique
veneer is made of .: composite, porcelain
18.Outline form is the design and initial depth of sound tooth structure.: True
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