Ivoclar Vivadent SR Chromasit - Manual (Page 3)

3
Chromasit
SR
SR Chromasit is a pressure/heat-curing micro-
filled veneering material. It features excellent
physical properties and provides true-to-
nature shade effects. The material therefore
facilitates the fabrication of lifelike composite
veneers.
The consistencies of the various ready-to-use
SR Chromasit veneering materials are
coordinated and compatible with each other.
As a result, SR Chromasit Dentin, Incisal and
the various special compounds can be
layered without intermediate polymerization.
The combination of the SR Chromasit
veneering material with the SR Link or
SR Chroma Link bonding system produces
long-lasting high-quality results.
Indication
– metal-supported crowns and bridges
– fully veneered restorations up to the
second premolar
– metal-supported implant-borne
superstructures
– veneers in combination dentures
– long-term temporaries in combination with
Vectris
Contraindication
– occlusal veneers on molars
– layer thicknesses of less than 1.5 mm in
the occlusal region
– alloys containing more than 50% silver
and/or copper
– alloys containing more than 90% gold,
palladium and platinum
– non-precious metal alloys or titanium with-
out mechanical retention
– bruxism
Important restrictions on
application
If the following advice is not followed, the
success of SR Chromasit restorations may be
jeopardized:
– Do not apply the material in layers thinner
than the stipulated minimum layer
thickness.
– If the polymerization unit is contaminated
(eg lime build-up), the polymerization
temperature may fall below the required
minimum temperature (115–120 °C /
239–248 °F). If the required temperature is
not reached, incompletely polymerized
veneers, which are prone to the formation
of accrection and plaque, may result.
– If used inappropriately, ultrasonic cleaning
fluids may dissolve the resin surfaces
because of their high degree of acidity.
– It is advisable to use a special jet medium
(Al
2
O
3
) with a grit size of 100 microns at
2 bar pressure for blasting purposes.
– The use of a jet medium with a lower grit
size may result in veneering material
chipping off.
Side effects
Systemic side effects have not been reported
to date. Allergic reactions may occur in rare
cases. Do not use SR Chromasit restorations
in patients with a suspected or known allergy
to any of the material’s ingredients.