ASU BIO181 General Biology I Practice Exam

Which statement best distinguishes calculus from plaque?

Calculus is mineralized plaque that cannot be removed by coronal polishing alone Calculus is always an extrinsic stain Calculus is removed most effectively with a rubber cup Calculus forms only on restorations

Correct Answer:

Calculus is mineralized plaque that cannot be removed by coronal polishing alone

Explanation:

Calculus is a mineralized deposit and requires instrumentation such as scaling for removal. Coronal polishing is not a calculus-removal procedure.

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