Ivoclar Vivadent CosmoPost - Manual (Page 10)

10
Cementation
Generally, we recommend the adhesive cementation
technique for incorporating the CosmoPost. The chemico-
physical bond generated by adhesive cementation increases
the retentive force. If conventional cements are used, an
adequate retention surface is particularly important. This is
achieved if friction is present even before cementation and
the post demonstrates adequate length and accuracy of fit.
We recommend a dual-curing composite cement (eg
Variolink II System, Ivoclar Vivadent) for cementing the post
and the post build-up. Self-curing composite cements and
conventional cements (phosphate, glass ionomer, hybrid
ionomer cements) may also be used. In such cases, the
setting time of the cement has to be observed before work
may proceed.
The Variolink II System is offered together with either the Syntac Classic or Excite DSC bonding agent.
Procedure with the Variolink II luting composite system
Mix the selected shade (base paste) with the desired viscosity
(catalyst paste). The mixed Variolink II is dual-curing, ie, the
polymerization of the surface areas is initiated with blue
light. In deeper areas, chemical polymerization takes place.
For the cementation of root canal posts, we recommend
using the low-viscosity catalyst, due to its flow properties.
The shade is generally not decisive for the cementation of
root canal posts. Nevertheless, the 6 shades offer ample
possibilities of meeting the requirements of the individual
clinical situation. For further information, please refer to
the Instructions for Use of the Variolink II System and the
following directions.