Multiple Choice
Match the items with the correct description below.
-These stains form on the surface of the teeth and are caused by food,drink,smoking,and a variety of other sources.
A) Extrinsic stains
B) Intrinsic stains
C) Hydrogen peroxide
D) Carbamide peroxide
E) Hydrochloric acid
Correct Answer:
Verified
Correct Answer:
Verified
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