Ultrasonic scalers use high-frequency mechanical vibration at the working tip, together with water irrigation, to assist with the removal of calculus, plaque deposits, and surface debris during dental scaling procedures. Piezoelectric systems generate mainly linear tip movement, while magnetostrictive systems use an elliptical motion pattern. Tip design, power settings, and water flow are selected according to the intended procedure and equipment instructions. This category includes standalone and built-in scalers, handpieces, tips, and related accessories, with selected models offering LED illumination, water reservoirs, or additional operating modes. Specifications and included components vary, so specific product details should be reviewed before ordering.