Which instrument is primarily used to remove calculus from tooth surfaces below the gumline?

Which instrument is primarily used to remove calculus from tooth surfaces below the gumline?

• A. Curette
• B. Scaler
• C. Explorer
• D. Hoe elevator

Answer: (A)

To remove calculus beneath the gumline, you need an instrument that can safely reach under the gingival margin and conform to the contours of the root. A curette has a rounded toe and a curved blade with two cutting edges, which lets you adapt it to subgingival surfaces and make controlled strokes along the root without injuring soft tissue. Scalers are designed for supra-gingival cleaning and are less suited for tight, subgingival spaces. An explorer is a probing instrument used to detect calculus, not remove it. A hoe elevator is intended for extraction and related procedures, not subgingival calculus removal. So the curette is the best choice for removing calculus below the gumline.

To remove calculus beneath the gumline, you need an instrument that can safely reach under the gingival margin and conform to the contours of the root. A curette has a rounded toe and a curved blade with two cutting edges, which lets you adapt it to subgingival surfaces and make controlled strokes along the root without injuring soft tissue. Scalers are designed for supra-gingival cleaning and are less suited for tight, subgingival spaces. An explorer is a probing instrument used to detect calculus, not remove it. A hoe elevator is intended for extraction and related procedures, not subgingival calculus removal. So the curette is the best choice for removing calculus below the gumline.