Match the Items with the Correct Description Below

Multiple Choice

Match the items with the correct description below.
-Aluminum oxide

A) An extremely fine abrasive used extensively as a final polishing agent for enamel and restorations
B) A natural abrasive composed of quartz and silica
C) Volcanic silica manufactured as a loose abrasive
D) A synthetic material that produces an extremely hard and efficient abrasive material
E) A synthetic abrasive;the powder form is used in sandblasting restorations in preparation for cementation