Match the Items with the Correct Description Below

question 27

Multiple Choice

Match the items with the correct description below.
-Pumice

• 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

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