Ivoclar Vivadent SR Nexco Paste - Manual (Page 7)

7
dEfInItIonS and dEScrIPtIon
Compatibility with polymerization units
High-performance polymerization is requisite in the fabrication of
high-quality lab composite restorations. With the excellent light-
curing appliance Lumamat
® 100 from Ivoclar
Vivadent, you can achieve an optimum
polymerization of Sr nexco restorations and
thus benefit from the full potential of this
material's physical properties. In addition,
the sensor-controlled Quick appliance is
available to quickly precure the material. the
Quick can also be used for the intermediate
polymerization of other light-curing veneering
materials.
apart from Lumamat 100, other poly-
merization appliances may also be used for
complete or intermediate polymerization. an overview of the tested
appliances and the respective polymerization parameters can be
found on page 57.
The range of available alloys may vary from country to country.
WorKInG tImES/cUrInG dEPtHS
Working times
Sr nexco materials are sensitive to light. the working time depends
on the layer thickness, the shade and the environmental light
conditions. Brighter shades react more quickly than darker ones.
the values indicated below are average values at a light intensity of
3000 Lux, which corresponds to a bright work space lighting. these
maximum values must be taken into consideration when extruding
the respective amount of veneering material.
2–25 min
low viscosity
4–25 min
SR Nexco Margin
SR Nexco Dentin
SR Nexco Incisal
SR Nexco Effect
SR Nexco Gingiva
high viscosity
SR Nexco Liner
SR Nexco Opaquer
SR Nexco Stains
SR Nexco Time
Curing depths
due to the light sensitivity, the curing depth (intermediate curing
with the Quick initial curing light) of Sr nexco materials depends on
the shade and above all the layer thickness. Bright and translucent
shades cure better, as light can penetrate through these shades
more easily than through darker and more opaque shades. these
values must be taken into consideration during the layering of the
different materials.
SR Nexco
Curing depths
(20 seconds with the Quick)
SR Nexco Opaquer max. 0.05 mm
SR Nexco Stains 0.2 – 0.8 mm
SR Nexco Paste
Incisal, dentin, Effect
min. 2.0 mm
SR Nexco Paste
margin, Gingiva, Intensive Gingiva
min. 1.0 mm
Compatibility with Ivoclar Vivadent alloys
a metal framework is the basis for any veneered metal-based resto-
ration. to this end, Ivoclar Vivadent offers a wide range of different
high-quality alloys which are specifically designed to match their
area of indication. this range includes high-gold, reduced gold and
base metal alloys. In conjunction with the Sr Link bonding system,
the alloys establish an ideal metal/composite bond.
When using other alloys, please ask your
alloy manufacturer about the
compatibility with Sr Link and its
system components.
Alloys Au Pt Pd Ag
High-gold
academy Gold 77.2 <1.0 – 12.7
Harmony ® Pf 72.0 3.6 – 13.7
academy Gold XH 70.7 3.6 – 13.7
Reduced gold
Harmony ® X-Hard 68.3 2.9 3.6 10.0
XL-X ® 62.8 – 3.9 16.1
maxigold ® 59.5 – 2.7 26.3
midigold ® 50 50.0 – 3.5 35.0
magenta 50.0 – 6.5 21.0
minigold ® 40.0 – 4.0 47.0
Harmony ® 3 3.5 – 25.9 50.8
Universal alloys
BioUniversal Pdf 71.1 9.2 – 11.7
Co Ni Cr Mon
Base metal
d.SIGn ® 30 60.2 – 30.1 <1.0
colado ® cc 59.0 – 25.5 5.5
colado ® nc – 65.6 20.1 1.3
4all – 61.4 25.7 11.0