Ultrasonic scalers are used to remove calculus rapidly from the tooth surface. The scaling tip vibrates in the ultrasonic range of 20-45 kHz (i.e. 20,000 to 45,000 times per second), with an optimum frequency between 18 kHz and 32kHz.

Most of the scaling power is available at the tip, which is cooled with a jet of water.

There are three basic types – Magnetostrictive, Piezo-Eectric and Odontoson.

How It Works

The scaling tip vibrates and follows a pattern depending on power rating and type – elliptical, curved linear. The water is energised as it passes over the tip to provide cavitation, which results in a scouring action. Because of the heat generated at the tip, it is essential to keep the tip moving over the teeth.

Advantages

1.Fast, effective scaling if used properly – light touch & short time on tooth.
2.Subgingival work is possible with the correct type of insert (e.g. Focus Spray Insert (FSI), Slimline or Through Flow Insert (TFI)).