Mock Written EFDA Board questions with answers

"Mock" Written EFDA Board questions with |\ |\ |\ |\ |\ |\




answers

Why is a thin layer of calcium hydroxide considered therapeutic
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when placed in a deep prep? - CORRECT ANSWERS ✔✔Stimulates
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a thickening of dentin
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At which line angles are the retention grooves in a class II
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amalgam located? - CORRECT ANSWERS ✔✔Linguoaxial and
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buccoaxial


What is dentin primarily composed of? - CORRECT ANSWERS
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✔✔Dentinal tubules with protoplasmic extensions |\ |\ |\ |\




What is enamel composed of? - CORRECT ANSWERS ✔✔95%
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organic matter |\




At which portion of the tooth is enamel thicker? - CORRECT
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ANSWERS ✔✔Incisal/occlusal |\




Which is darker in color, enamel or dentin? - CORRECT ANSWERS
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✔✔Dentin


ZOE placed in a deep DO amalgam to replace axial and pulpal
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walls should have what type of base shape? - CORRECT
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ANSWERS ✔✔Rounded/beveled axis-pulpal line angle
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, Which material is NOT compatible with composite? - CORRECT
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ANSWERS ✔✔Zinc oxide eugenol cement |\ |\ |\ |\




A lingual pit on tooth #7 is what type of restoration? - CORRECT
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ANSWERS ✔✔Class I |\ |\




Where would you place a base? - CORRECT ANSWERS ✔✔On
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dentin surfaces |\




Which metal adds strength and decreases expansion of
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amalgam? - CORRECT ANSWERS ✔✔Copper |\ |\ |\ |\




What is the order of placement in a very deep prep for amalgam
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that has a near-pupal exposure and loss of axial wall contour? -
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CORRECT ANSWERS ✔✔Calcium hydroxide, cavity varnish, zinc
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phosphate cement |\




What component results in decreased expansion of amalgam? -
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CORRECT ANSWERS ✔✔High copper content |\ |\ |\ |\




What is galvanization? - CORRECT ANSWERS ✔✔Occurs when
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dissimilar metals touch inside the mouth and produce an electric
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current that causes pain |\ |\ |\




Which material has poly acrylic acid as a component of its liquid?
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- CORRECT ANSWERS ✔✔Glass ionomer cement
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