Start here · Machines · Sterilization area

Ultrasonic cleaner

Also called: ultrasonic bath, ultrasonic

A tank of cleaning solution that shakes debris off instruments with sound waves.

An ultrasonic cleaner sends sound waves through a cleaning solution, which makes millions of tiny bubbles that pop against the instruments and lift off blood and debris. It cleans; it does not sterilize. CDC prefers automated cleaning like this over hand scrubbing because it is safer and works better.

How to spot it

  • A stainless steel tank with a lid, a timer and a basket or cassette rack.
  • A soft buzzing sound while it runs.

What it is used for

  • Cleans used instruments in a basket or cassette before rinsing, drying and packaging.
  • Uses only a cleaning solution made for ultrasonic units, mixed as the label says.

Safety and care

  • Wear utility gloves, mask, eye protection and a gown; keep the lid closed while it runs to hold in aerosols.
  • Never put your hands in the tank while it is running, and never run it dry.
  • Example manufacturer instructions: degas new solution before use and change the solution at least daily or when it looks dirty. Follow your unit's instructions.
  • Rinse instruments well after the cycle.

Related

Sources: CDC. Guidelines for Infection Control in Dental Health-Care Settings, 2003. MMWR 2003;52(RR-17), Coltene/Whaledent. BioSonic UC300 ultrasonic cleaner instructions for use (DOC IFU 30002491J)