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5. Maintenance and Cleaning
For reasons of hygiene, we recommend using a
disposable protective sleeve for each patient. Make sure
to fit the protective sleeve closely to the light guide. Use
either the sleeves enclosed in the delivery form or other
suitable and approved single-use protective sleeves.
Disinfect contaminated surfaces of the device and anti-
glare cones (FD 366/Dürr Dental, Incidin Liquid/Ecolab,
CaviCide/Metrex Research). Sterilize the light guide
before each use if disposable protective sleeves are not
used. Make sure that no liquids or other foreign
substances enter the handpiece, charging base and
particularly the power pack during cleaning (risk of
electrical shock). Disconnect the charging base from the
power source when cleaning it.
Cleaning the housing
Wipe the handpiece and handpiece holder with a
customary aldehyde-free disinfecting solution. Do not
clean with highly aggressive disinfecting solutions
(e.g. solutions based on orange oil or with an ethanol
content of more than 40%), solvents (e.g. acetone), or
pointed instruments, which may damage or scratch the
plastic. Clean dirty plastic parts with a soapy solution.
Pre-treating the light guide
Before cleaning and/or disinfecting the light guide,
pretreat it. This applies to both automated and manual
cleaning and disinfection:
– Remove substantial contamination immediately after
use or 2 hours after that at the latest. For this purpose,
thoroughly rinse the light guide under running water
(for at least 10 seconds). Alternatively, use a suitable
aldehyde-free disinfecting solution to remove any
adherent blood.
– To remove contamination manually, use a soft brush or
soft cloth. Partially polymerized composite can be
removed with alcohol and a plastic spatula, if
necessary. Do not use sharp or pointed objects, as they
may scratch the surface.
Manually cleaning and disinfecting the light guide
For manual cleaning, place the light guide in an
instrument cleaning solution (e.g. ID 212 forte/
Dürr Dental) for the recommended reaction time
(15 minutes). Make sure that the light guide is
sufficiently immersed in cleaning solution (cleaning bath
with sieve insert and lid). Observe the instructions for
use of the disinfectant manufacturer when using
cleaning and disinfectant solution.
When cleaning and disinfecting, please make
sure that the agents used are free of:
– organic, mineral and oxidizing acids
(the minimum admissible pH value is 5.5)
– alkaline solutions (the maximum admissible
pH value is 11)
– oxidizing agent (e.g. hydrogen peroxide)
After the cleaning process, remove the light guide from
the solution and thoroughly rinse it under running water
(20 +/– 2 °C / 36 +/– 4 °F ) for at least 10 seconds.
Mechanical cleaning and disinfection of the light guide
(Disinfector/CDU (cleaning and disinfection unit))
As an alternative, cleaning and disinfection can be
carried out mechanically: Neodisher® MediClean forte,
Dr. Weigert, 0.5 %, according to cleaning program,
e.g. cleaning 55 °C (131 °F) (+5 °C (41 °F)/–0 °C), 5–10 min,
disinfection 90 °C (194 °F) (+5 °C (41 °F)/–0 °C), 5–10 min.
