Ivoclar Vivadent Light Tray - Manual (Page 4)

Light Tray
Instructions for Use
Description
Light Tray is a ready-to-use, light-curing resin.
The light-proof container permits optimum
utilization of the material. Surplus material can be
stored away from light ready for reuse.
Composition
Light Tray consists of acrylated oligomers, glass
fillers, dimethacrylate, silicon dioxide, catalysts and
pigments.
Indications
Light Tray can be used for the fabrication of:
• customized trays
• bite plates
• base plates for wax try-ins
• base plates for fixing registration devices
• check bites for framework try-ins
Contraindications
Avoid direct intraoral contact with unpolymerized
Light Tray material.
Side effects
In patients with a hypersensitivity, repeated
contact with unpolymerized material may cause
irritation or, in rare cases, lead to a sensitizing
reaction. It should not be used for patients with a
known allergy to any of the material’s ingredients.
Features
• quick, clean application
• exact fit
• excellent adaptability
• high stability and good elastic recovery
• uniform layer thickness
• economical, thanks to reuse of surplus material
Instructions for Use
After blocking out undercut areas, soak the model
in water and isolate with Ivoclar Separating Fluid.
Mould Light Tray onto the model using a suitable
instrument.
Working time
(in normal daylight without direct exposure to
sunlight): approx. 10-15 minutes (take the lighting
in your working area into consideration).
Adhesion of material to fingers or instruments can
be prevented with a little water. Cut the functional
edge to length with a sharp instrument and
remove excess. Use the surplus material to build
the tray grip. Residual Light Tray material can be
reused at a later date. Please keep in mind that
exposure to ultraviolet light for an extended period
of time can trigger polymerization!
Polymerize the completed tray in a suitable poly-
merization unit. Any commercially available ultra-
violet or halogen light-polymerization unit can be
used. Since the light output intensity of such units
varies considerably, the material should be cured
from both sides without vacuum for 3–5 minutes.
Finishing can be done immediately after curing.
Optimum physical properties are achieved after a
polymerization time of 5 minutes. Use alcohol
to clean the polymerized surface. If necessary, the
functional edge can be trimmed with an abrasive
instrument. Because Light Tray produces a very fine
dust when ground it is advisable to work with a
suction device and a mask. Use a pumice powder
slurry for polishing.
The tray mad with Light Tray can be used
immediately for impression taking.
Modifications and corrections
Remove surplus Light Tray material from the light-
protected container, abrade or sandblast, clean,
remould and polymerize again.
English
Light Tray-WE1.qxd 29.11.2001 14:51 Uhr Seite 4