scaler造句怎么写

This air scaler is intended to remove dental plaque, calculus and stain from tooth surface and tooth root by dental professionals only.

The other stain is hard. It has to be scraped away with a scaler.

The doctors can do it. They remove them with a special instrument or an ultrasonic scaler.

Use a Towner U-15 scaler here. Be sure to reach under the particle of calculus and scrape upward.