From the following list, select anesthetics that are available in a topical formulation
a. lidocaine
b. benzocaine
c. mepivicaine
d. tetracaine
a.b.d. Mepivacine does not produce topical anesthetic action.
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To withdraw fluid from an ampule, a ________ must be used
A) filter needle B) dispensing pin C) Luer-lock syringe D) transfer needle
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Black powder consists of
a. an intimate mixture of charcoal, sulfur, and either potassium nitrate or sodium nitrate. b. a mixture of charcoal, sulfur, and potassium nitrate. c. nitroglycerin. d. dynamite.
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A(n) ____ is a short fold of hose or a reverse fold that is used allowing for coupling placement on the load.
A. accordion load B. shoulder load C. coupling D. dutchman
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The maximum depth of sulcus should not exceed ____ mm
a. 1 b. 2 c. 3 d. 4
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