KERR Demi Ultra Bedienungsanleitung Seite 10

Other Product Use Notes
If the LED Light Button is pressed at any time during a curing cycle it will stop the cycle. To disable PLS, press
and hold the LED Light Button when starting the curing cycle. PLS will be disabled until the button is released.
While PLS is disabled the Demi Ultra will maintain a steady base light output of 1,100 mW/cm2 and the unit
will beep once per second.
LED Light
Button
NOTE: Periodic Level Shifting (PLS) will appear
as flickering of the light from the LED Light
Attachment.
When not in Silent Mode, the unit will emit a short beep when the button is pressed. The beep indicates the
curing cycle has begun. A slightly longer beep will sound at the end of the curing cycle. During the 10 and 20-
second cycles, a beep is sounded every 5 seconds as well as at the end of the cycle.
Recommended Curing Times
The Demi Ultra is a high-output curing unit. Kerr testing indicates the following recommended curing times as
estimates. Always follow the recommended curing times published by the manufacturer of your dental
restorative materials when available.
Material
Universal composite shades A3 and lighter (2 mm depth)
Universal composite shades A3.5 and darker (2mm depth)
SonicFill shades A3 and lighter (5mm depth)
Bonding agents, universal resin luting cements and self-etch, self-adhesive cements
*Kerr testing indicates that SonicFill attains a 5mm cure in 10 seconds with a light output exceeding 1000 mW/cm2.
Although Demi Ultra provides light output in excess of 1000 mW/cm2, Kerr continues to adopt a conservative position and
recommends a 20 second cure.
It is highly recommended that curing capability be tested using a hardness disk to ensure a
complete cure. When a hardness disk is not available, light output can be verified with a
radiometer to estimate curing effectiveness. Failure to perform either of these tests may
lead to incomplete cures of dental restorative materials.
CAUTION
Figure 11 – Curing composite on a tooth
9
LED Light Attachment
Curing Time
20 seconds*
5 seconds
10 seconds
5 seconds