Light Intensity - Ivoclar Vivadent Bluephase PowerCure Mode D'emploi

Polyvision - Automatic assistant with intelligent
anti-glare protection
Bluephase PowerCure features a
fully automated "polyvision"
assistant for safe polymerization.
This feature enables the curing light
to automatically sense if the
handpiece is inadvertently moved from its position
during the curing procedure. To prevent any associated
reduction in the amount of energy being transferred, the
device will start to vibrate to alert the user to the
improper use and will automatically extend the curing
time by 10%. If the handpiece is significantly shifted
away from its initial position (e.g. out of the oral cavity),
the light will automatically switch off so that the curing
process can be restarted and carried out correctly.
In addition, polyvision also acts as intelligent anti-glare
protection. Polyvision ensures that the curing light
cannot be used outside the mouth. The light can only be
activated once the light guide is positioned directly over
the material to be polymerized. This protects the
operator and patient from being blinded by the light.
If a protective sleeve is used, this function is not
available. Contamination of the light guide may affect
the functionalities of the polyvision assistant.
The automatic assistant is there to support the user. It
does not obviate the need for monitoring by the user.
If you do not want to use the assistant, you can
deactivate it at any time by long pressing (> 2 seconds)
the Time or Program selection button. The symbol on
the handpiece (see 1.3 Indicators on the handpiece) then
disappears.
Measuring the light intensity
We recommend checking the light intensity emitted by
the curing light at regular intervals using the integrated
radiometer in order to be sure that the materials are
adequately cured and the composite fillings are of a high
and lasting quality (see 3. Start-Up).
Cure Memory function
The last settings used, together with the combination of
curing program and curing time, are automatically
saved.
Start/Stop
The light is switched on by means of the Start/Stop
button. It is recommended that the emission window of
the light guide is placed directly on the material to be
polymerized. Once the selected curing time has elapsed,
the curing program is automatically terminated. If
desired, the light can be switched off before the set
curing time has elapsed by pressing the Start/Stop
button again.
Acoustic signals
Acoustic signals can be heard for the following functions:
– Start (Stop)
– Every 10 seconds
– Curing time and program change
– Inserting battery
– Error message (when anti-glare protection is activated
or curing cycle aborted)
– Error message when attempting to activate the 3sCure
program during the 30-second waiting time that
follows after the program has been used twice in
succession.

Light intensity

The light intensity is maintained at a consistent level
during operation. If the supplied 10>9 mm light guide is
used, the light intensity has been calibrated to
1,200 mW/cm 2 ± 10% in the High Power program.
In the Turbo program, the light intensity is calibrated to
2,100 mW/cm 2 ± 10%. In the 3-second program (3sCure),
the light intensity is calibrated to 3,050 mW/cm
If another light guide than the one supplied is used, it
directly influences the emitted light intensity.
When focussing light guides (10>9 mm) or Pin-Point
light guides (6>2 mm) are used, the diameter of the
light entry is larger than the diameter of the light
emission window. The incident blue light is therefore
concentrated over a smaller area. As a result, the emitted
light intensity is increased.
Pin-Point light guides are suitable for spot-on
polymerization, e.g. to tack veneers in place before
removing excess material. For complete polymerization,
the light guide must be changed.
± 10%.
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