Ivoclar Vivadent SR Ivocap System - Manual (Page 8)

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– The temperature of the water bath must be set in such a
way that the water boils during the entire polymerization
period.
– The water level must reach the red mark on the clamping
frame and must be maintained at this level throughout the
polymeri zation period.
– The polymerization time once the water starts to boil is
exactly 35 minutes.
– Do not interrupt the boiling procedure by introducing other
flasks.
– Content of residual monomer according to ISO 20795-1
< 2.2%. In order to reduce the content of residual
monomer below 1%, the material must be polymerized for
90 minutes in boiling water. The residual material will set in
the capsule during this time.
Consequences of incorrect water level during
polymerization
–
Over the red mark
– Capsule reservoir polymerizes; constant flow of the resin
during polymerization becomes impossible.
– Waste of material due to polymerization of leftover
material in the capsule.
– Below the red mark
– Partially unpolymerized areas in palatal, post dam or
retromolar areas
Cooling
After completion of the 35-minute polymerization
procedure, remove the SR Ivocap assembly from the
boiling water and immediately cool in cold water.
During the first 20 minutes of the cooling phase, the
pressure in the clamping frame and the injection
apparatus must remain unchanged.
After 20 minutes, the pressure apparatus can be removed. The
clamping frame together with the flask, however, must remain
in cold water for an additional 10 minutes.
Total cooling time: 30 minutes
A locking valve on the pressure apparatus maintains the
injection pressure at a constant level during the cooling
phase, irrespective of the compressed air supply. This
results in increased mobility, since the cooling bath does
not necessarily have to be near the air supply.
Deflasking
Mount the clamping frame in the press and re-apply 3 tons /
6000 lbs pressure. Move the ratchet (B1) back to the left
and release pressure. Remove the flask from the clamping
frame.
Recommended procedure
– Remove both plastic covers, insert flask with the narrow
side to the front into the press. Place any suitable object
between the plaster investment and the pressing plate, not
touching the flask edges. Close the press with minimal
pressure (Fig 19).
– Introduce a broad screwdriver into the joint beside the
guide piece and lever the upper flask half upwards (Fig 19).
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17
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– Remove the flask from the press and repeat the same
procedure with the flask reversed. The investment can now
be removed from the flask without difficulty and without
using force (eg hammer).
– Remove plaster in the usual way.
– Finish and polish as usual.
– Deflasking devices can also be used for this purpose.
Repairs
All the Ivocap materials are also available in cold-curing form.
Ivoclar Vivadent recommends its cold-curing polymers for
repairs. The Instructions for Use of these materials provide
detailed information about the repair methods available.
Please see the individual Operating Instructions of the different
apparatus.
Storage
–
Store the material in a cool, dark and well-ventilated place
– Unmixed: storage temperature of 2–28 ºC / 36–82 ºF)
– Mixed: max 5 days, cool and protected from light at
8 ºC / 46 ºF
– If the material is refrigerated, the capsule should be
removed from the refrigerator one hour before use and
brought to room temperature.
– Do not use the product after the indicated expiry date.
– Store out of the reach of children.
Classification according to ISO 20795-1
Type 1, Class 1
Date information prepared: 11/2010
Manufacturer:
Ivoclar Vivadent AG, FL-9494 Schaan / Liechtenstein
The material has been developed solely for use in dentistry. Processing should be carried out
strictly according to the Instructions for Use. Liability cannot be accepted for damages resulting
from failure to observe the Instructions or the stipulated area of appli cation. The user is respon-
sible for testing the material for its suitability and use for any purpose not explicitly stated in
the Instructions. Descriptions and data constitute no warranty of attributes and are not binding.