When adapting a Gracey curet for subgingival scaling, what is the correct working-end angulation of the blade face to the tooth surface?

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Multiple choice — select the best answer

AExactly 90 degrees
BBetween 45 and 90 degrees
CLess than 45 degrees
DExactly 0 degrees (flat against tooth)

✓ Correct answer: B. Between 45 and 90 degrees An angulation between 45 and 90 degrees lets the cutting edge engage and remove the deposit; angles below 45 degrees burnish calculus and angles near 90 degrees can gouge.

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Topic: Periodontology

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When adapting a Gracey curet for subgingival scaling, what is the correct working-end angulation of the blade face to the tooth surface?

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