b. Characteristics. Cleaning solutions available for the ultrasonic cleaner are
harmless, chemically stable, and usable several times. Only ultrasonic cleaner
solutions are effective in an ultrasonic unit; other solutions may not be substituted.
Normally, an article should remain in the cleaner for 10 to 15 minutes.
PREPARING INSTRUMENTS FOR STERILIZATION
a. General. Before packaging instruments for sterilization, four steps must be
taken. Remember that all hinged instruments remain open during the cleansing
b. Four Steps.
(1) Soak instruments in a holding solution prior to using the ultrasonic
cleaner unit. The holding solution should be prepared first thing in the morning and
replaced with fresh solution after the morning patient session.
(2) Clean the instruments ultrasonically. Prior to using the ultrasonic
cleaner unit if visible debris is present, scrub the instruments under warm running water
to remove all scale, debris, blood, saliva, and tissue. Items are to be placed in the
ultrasonic cleaner rather than dropped. This prevents splashing and possible injuries to
Rinse the instruments under warm running water.
Pat the instruments dry to remove excess water.
INSPECTING ITEMS FOR STERILIZATION
a. General. All items must be inspected after they have been cleaned, dried,
tested for function, and sorted. If they are soiled, the process of preparation must be
repeated. It is recommended that local policy be followed regarding lubrication,
sharpening, repairing, and replacement and for disposal of unserviceable items.
b. Inspection Factors.
Metal items. Inspect for signs of rust, cracks, chips, and bent or missing
(2) Hinged instruments. Open all hinged instruments during cleaning and
sterilization. Inspect instruments for sharpness and for proper closure. Oil the
instrument, if necessary. If dull, sharpen the instrument.
Linens. Inspect linens for tears, holes, stains, or other defects.