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ADEX Dental Hygiene Exam Prep

Category - DANB

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What instrument is limited to use on the enamel surfaces and the outer surface of a calculus deposit?

Universal curet
Periodontal file
Explorer
Sickle scaler

Explanation

Answer - B - The periodontal file is limited to use on the enamel surfaces and the outer surface of a calculus deposit. The working-ends have straight cutting edges on a flat base. The instrument does not adapt well to curved tooth surfaces.

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