Unit 304: Prepare and maintain environment

Unit 304: Prepare and maintain environment, instruments and
equipment for clinical dental procedures
Written Project: Validation of Dental Equipment and Instruments
304. 2.1, 2.2, 2.3
Range: 1abcdefghi
304. 3.2, 3.8
In your day to day work as a dental nurse you must always ensure that all
dental equipment is functioning properly. For this you must validate dental
equipment and instruments on a daily basis following manufacturer’s
guidelines, organisational and legal requirements.
Over the next week, please complete the following table explaining the actions
you take to validate equipment (ensure its functioning properly) and explaining
what records do you maintain (including date, time, where do you record
outcomes and keep records, what information/details do you record).
Equipment Validation of Dental
Equipment and Instruments Records kept
Dental Chair
Before start day I am
checking the dental chair
power on, hand piece light on,
foot pedal control, main switch
panel, seat moving up down,
armrest, back support,
backrest, headrest, dental
light.
Dental chair must be
serviced under guideline of
manufacturer which includes
the replacement of
components, repair,
prevention and
maintenance. With this,
dentist keep the record
about chair model and serial
number. It is checked
regularly after treating more
than two patients. Wipe out
the chair for ensuring the
surface stay wet for 2-3
minutes.
Aspirator
l am activate rinsing program,
rinsing instrument tubes and
water supply system , flashing
suction tube and suction
system .
Cup filler for water, air
vacuum, saliva ejector (open-
close) and bowl flush nozzle.
Aspirator is an ejector jet
pump. It produces vacuum.
It can be clean by using an
air pump to suck up the dirt
and dirt, blood and debris.
With this, evacuation system
can be used through the
tubing on regular basis.
Hand Pieces
The Hand Pieces I am
connected correctly to
relevant compressed air
Hand pieces are intricate
and technical pieces of
equipment should be

supplies on the bracket table
and each one run into the spit
toon for 30-60 seconds to be
ensure that work properly.
repaired and serviced by
qualified technicians. For
that lubrication, cleansing,
sterilisation can be used.
According to the guideline
hand pieces must clean with
30 seconds to clean or
remove contamination from
internal water line. With that
a mid washing powder also
acceptable.
Ultrasonic Scaler
I am checking ultrasonic
scaler every morning first
power setting must be on then
spray water volume and water
in the bottle. Run into the spit
toon for 30-60 seconds to be
ensure that work properly.
Ultrasonic scaler is used to
clean the teeth of patients.
Moist and warm water acts
as a base to generate the
bacteria. It can also
become clogged over the
time. There are many types
to clean the ultrasonic
scaler. Brass filter, it is easy
to install and inexpensive.
Another is transparent inline
filter and luer lock filter. It is
easy to use but expensive to
change.
X-ray Machine
Every morning before start the
work day dentist check x-ray.
She check by on the tray she
putting one burse
X-ray machine can be
cleaned by using water and
mild soap. Before placing a
piece of firm inside allow
them to dry completely. If
fluid or dirt get inside the
cassette can make read the
results confusing. Machine
should be clean after using
trice a day regularly and
keep the record safely.

Unit 304: Prepare and maintain environment, instruments and
equipment for clinical dental procedures
Written Project: Validation of Dental Equipment and Instruments
304. 2.1, 2.2, 2.3
Range: 1abcdefghi
304. 3.2, 3.8
X-ray Processing
Equipment
Before using the X-ray
processing equipment, I
regularly check. It takes an
hour or half hour for
panoramic x-ray set.
X-ray equipment must be
checked regularly. For
checking radiological, test
must be done in every three
years panoramic x-ray, intra
oral.
Autoclave
(include different
methods available
for both vacuum
and non-vacuum
autoclaves)
Set the heat to 134 for 3
minutes at a 2.25 bar
pressure. After setting that up
the steam starts coming down
on the items inside the
chamber where they are
being cleaned. This happens
over and over again for
around 20 minutes depending
if the autoclave has being
used before.
Autoclave should be clean
on the daily basis by dusting
of the outside with water and
removal of debris from
drains.
Clean the drains via
manufacturers approved
cleaner. On monthly basis,
it should be clean by
following all precautions
prescribed by manufacturer.
Washer Dryer
It should be cleaned under
running tap water with
detergent. After that it placed
in sterile bur stand.
This must be cleaned on
regular basis to sanitise for
better use. For this chemical
can be considered.
Cleaning involves removal
of both debris organic and
inorganic. It removes the
microbial and make the
equipment dis infective.
Ultrasonic Bath Before using ultrasonic bath I
check it on daily basis. By
measuring the depth of empty
tank.
It is effective in checking
patients status daily. Hence,
it must be cleaned with
proper disinfectant. With that
it can be cleaned by
washing powder that
removes saliva, blood, and
other organic and inorganic
debris. It kills the bacteria
and other pathogens with
that it cleans harsh

compounds and resistant
organism.