Figure 9-3.Soiled linen receptacle.
treatment, and after the patient is dismissed. There can
be no short cuts or deviation from your commands
written procedures and guidelines on infection control.
They must be done correctly. You must be able to
accomplish the following infection control
Prepare the DTR for treatment.
Assist the dental officer during treatment.
Disinfect the DTR between patients.
Secure the DTR at the end of the day.
Perform housekeeping duties.
Dispose of infectious waste.
PREPARATION OF THE DTR
In accordance with BUMEDINST 6600.10, the
Dental Infection Control Program, the following
procedures should be used. As a dental assistant, it is
your responsibility to ensure that your DTR is
properly prepared to treat dental patients. All dental
personnel must strictly adhere to the procedures
Unit Water Supply System
At the beginning of each workday, flush each of
the unit water lines and hoses for at least 1 minute,
beginning with the cup filler and cuspidor even if their
use is not anticipated. Potable water supplies may
contain up to 100 bacterial colony forming units per
millimeter (cfu/ml), and water in dental units, at times,
can contain in excess of 1,000,000 cfu/ml. This
microbial contamination comes from the retraction of
contaminated water and saliva through the dental
handpiece and the growth of bacteria in the unit water
lines. Although most incoming water is chlorinated,
chlorine loses its potency as the water lies stagnant in
the unit tubing. Under the right circumstances, these
bacteria will multiply and may become pathogenic.