A Scaler & Curette Set is a fundamental collection of hand instruments used by dental hygienists and dentists for the professional cleaning and debridement of teeth, specifically for the removal of dental plaque, calculus (tartar), and biofilm both above (supragingival) and below (subgingival) the gum line. While scalers and curettes both remove deposits, their design and primary applications differ. Scalers (e.g., sickle scalers) typically have pointed, sharp working tips and are designed for removing large, tenacious deposits of supragingival calculus. Their triangular cross-section and sharp edges allow them to effectively chip away and dislodge hard deposits from the crown of the tooth. Curettes (e.g., universal curettes, Gracey curettes), on the other hand, have rounded or blunted tips and backs, and their cutting edges are designed for subgingival use—meaning they can be safely inserted beneath the gum line to remove calculus and root surface irregularities without damaging the soft tissues. Gracey curettes are area-specific, designed to adapt to specific tooth surfaces, while universal curettes can be used on all surfaces. A comprehensive set typically includes various shapes and sizes of both scalers and curettes to adapt to the contours of all tooth surfaces and access different areas of the mouth. The precise engineering of these instruments allows clinicians to perform thorough and effective debridement, crucial for preventing and treating periodontal disease. A Scaler & Curette Set is indispensable for maintaining optimal oral hygiene and promoting gum health.