Ivoclar Vivadent Bluephase G4 Mode D'emploi page 9

Eye protection
Direct or indirect exposure of the eyes must be
prevented. Prolonged exposure to the light is
unpleasant to the eyes and may result in injury. To
optimize user safety, the device has been equipped with
intelligent anti-glare protection. For this, the "polyvision"
function must be activated (see 4. Operation). With the
polyvision function activated, the Bluephase G4
automatically senses if the handpiece is outside of the
mouth and automatically switches off the light if it has
been activated inadvertently.
Therefore, using the supplied anti-glare cones is
recommended. Individuals who are sensitive to light,
who take photosensitizing drugs, have undergone eye
surgery, or people who work with the apparatus or in its
vicinity for long periods of time should not be exposed
to its light and wear protective orange goggles that
absorb light below a wavelength of 515 nm. The same is
true for patients.
Battery
Caution: Use only original spare parts, particularly
Ivoclar Vivadent batteries and charging bases. Do not
short circuit battery. Do not touch the battery contacts.
Do not store at temperatures above 40 °C / 104 °F
(or 60 °C / 140 °F for a short period). Always store
batteries charged. The storage period must not exceed
6 months. May explode if disposed of in fire.
Please note that lithium-polymer batteries may react
with explosion, fire and smoke development if handled
improperly or mechanically damaged. Damaged
lithium-polymer batteries must no longer be used.
The electrolytes and electrolyte fumes released during
explosion, fire and smoke development are toxic and
corrosive. Do not touch leaking batteries with bare
hands. In case of accidental contact with the eyes or
skin, immediately wash with copious amounts of water.
Avoid inhalation of fumes. In case of indisposition, see a
physician immediately. Remove electrolyte residue from
surfaces by washing/wiping with a moist cloth. Wash
contaminated pieces of clothing immediately.
Heat development
As it is the case with all high-performance lights, the
high light intensity results in a certain heat develop-
ment. Prolonged exposure of areas near the pulp and
soft tissues may result in irreversible damage. Therefore,
this high-performance curing light must only be
operated by trained professionals.
Generally, the stipulated curing times,
particularly in areas near the pulp (adhesives:
10 seconds), must be observed.
Uninterrupted curing times of more than 20
seconds on the same tooth surface, as well as
direct contact with the gingiva, oral mucous
membrane or skin have to be prevented.
Polymerize indirect restorations at
intermittent intervals of 20 seconds or use
external cooling with an air stream. The
instructions regarding curing programs and
curing times must be observed (see Selecting
the curing program and the curing time). In
addition, the light emission window must be
placed exactly on the material to be cured at
all times (e.g. by holding it in place using a
finger).
After several curing cycles on the same
tooth, there is a risk that the pulpa suffers
damage caused by the increased
temperature!
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