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Periodontal Instrumentation — NDEB AFK MCQ

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EasyPeriodontologyPeriodontal InstrumentationNDEB AFK

Which instrument is specifically designed for subgingival scaling of deep periodontal pockets and has a blade that is curved to adapt to root anatomy?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: B — Gracey curette

Gracey curettes are area-specific instruments designed for subgingival scaling and root planing. They have a single cutting edge, an offset blade (70° to the terminal shank), and various designs for different tooth surfaces (e.g., Gracey 7/8 for buccal/lingual, 11/12 for mesial, 13/14 for distal). Universal curettes have two cutting edges and can be used on any surface but are less adapted to specific root contours.

Reference: Newman – Newman and Carranza's Clinical Periodontology, 13th ed., 2019