Ivoclar Vivadent SR Nexco Paste - Manual (Page 4)

4
Product Information
matErIaL
Sr nexco Paste is a purely light-curing lab composite with micro-
opal fillers for framework-based and framework-free dental
restorations.
as the desired shades can be reproduced even with varying layer
thicknesses, a true-to-nature appearance can be achieved for
fixed and removable dental restorations, even with artificial
gingiva. the high content of inorganic opal fillers affords optimum
benefits in terms of abrasion, discolouration, processing and surface
gloss.
Physical properties of SR Nexco Paste
together with the respective matrix the inorganic micro-opal fillers
impart a homogeneous structure to the material. the balanced ratio
between these two components results in outstanding physical
properties achieved with the most popular polymerization units
available on the market.
Esthetic properties of SR Nexco Paste
In transmitted light, the full range of light-optical properties of
Sr nexco Paste becomes evident: the opalescence and translucency
of Sr nexco restorations correspond to the dynamic light effects of
natural teeth.
the light behaviour is very similar to that of natural teeth in all
areas: the tooth neck, the dentin areas and the incisal area.
this image taken with incident light shows the fluorescence and
luminosity of Sr nexco restorations. natural teeth derive a major
part of their brightness effect from their fluorescence. this
fluorescence plays an important role in the true-to-nature light
behaviour of Sr nexco restorations.
SR Nexco Paste
modulus of elasticity [mPa] 6500 ± 500
flexural strength [mPa] 90 ± 10
Hardness (Vickers) [mPa] 440 ± 10
Water absorption [µg/mm³] 15 ± 1
Water solubility [µg/mm³] 1 ± 0.5
Margin
Margin
Dentin
Dentin
Incisal
Incisal