Ultrasonic Scaling

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 of Ultrasonic Scalers over Hand Instruments

Ultrasonic scalers provide the following advantages over traditional hand instrumentation:

Sharpening of instruments not required
Easier debridement in inaccessible areas
Lesser time
More efficient removal of calculus
Less operator fatigue
Reduced tissue distention

Ultrasonic Scalers FAQs

What are the advantages of ultrasonic scalers over hand instruments?

Ultrasonic scalers provide many advantages over traditional hand instrumentation. These include easier debridement in inaccessible areas, more efficient removal of calculus, lesser time, reduced operator fatigue, and reduced tissue distention.

Are there different types of ultrasonic scaler units?

Yes, there are two popular types of ultrasonic scaler units – magnetostrictive and piezoelectric.

Can ultrasonic scalers cause damage to teeth or gums?

If used correctly, ultrasonic scalers are safe and efficient. However, if the tip of the ultrasonic scaler is placed over a single area of the tooth for an extended period, it can cause thermal damage to the pulp. Therefore, the tip should constantly move over the teeth to avoid any damage.