Which of the following dental materials will most likely have a see-through appearance radiographically?
a. A stainless steel crown
b. Gutta-purcha
c. A temporary filling
d. Acrylic resin
a. As a temporary restoration, this metal is less dense and will allow the passage of more x-rays, giving the material a "see-through" appearence.
Health Professions
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Fractions written with a numerator separated by a fraction line and positioned above a denominator are called:
A) Common fractions. B) Proper fractions. C) Improper fractions. D) Complex fractions.
Health Professions
What is the U.S. Food and Drug Administration (FDA) purity standard for O2?
a. 21% b. 90% c. 95% d. 99%
Health Professions