What is a sickle scaler primarily used for?

A sickle scaler is primarily designed for the effective removal of supragingival calculus, which refers to the hardened plaque that forms above the gum line. This dental instrument features a pointed tip and a curved blade, allowing for precise removal of calculus deposits from the tooth surfaces. The design of the sickle scaler makes it particularly useful in providing a thorough clean in areas that are typically exposed and accessible, making it an essential tool for maintaining oral hygiene during dental procedures.

In contrast, scaling away plaque below the gum line involves tools specifically designed for subgingival cleaning, such as curettes, which are better suited for that purpose. Polishing teeth surfaces after cleaning typically utilizes a rubber cup and polishing paste, rather than a scaler, which is used for smoothening the tooth surface but not for scaling. Diagnosing cavities is a function performed by dental professionals through examination and radiographic assessment, not by the use of scaling instruments like the sickle scaler. Thus, the sickle scaler's primary role in dental hygiene is indeed the removal of supragingival calculus.