Ivoclar Vivadent CosmoPost - Manual (Page 18)

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Preparation for modelling
– Remove the die from the model. Using pliers, carefully
remove the impression post from the master model by
slightly rotating it.
– Now, prepare the die for the spacer or the isolation and
mark the preparation margin.
– It is advisable to use a sealant (eg Margidur from Benzer).
– Apply two layers of the spacer (total layer thickness
approx. 15–20 mm) in the root cavity after the sealant has
set (see fig).
Modelling
– Modelling must be carried out with dental wax that burns
without leaving residue.
– During modelling, the subsequent preparation has to be
kept in mind. For shoulder preparations, the build-up
should end approx 1 mm before the preparation margin.
– Check the position of the CosmoPost in the die by slightly
rotating it. Carefully remove excess spacer.
– Isolate the die after curing of the Spacer (eg Die-Lub from
Dentaurum) and thoroughly disperse with blown air.
– Insert a CosmoPost of the correct size.
Important
The CosmoPost must be used in the length supplied. It
may only be shortened to a functional length once the
individual build-up has been pressed to it. This has the
advantage that the CosmoPost is stable in the investment
material. In this way, pressing errors can be prevented.
Furthermore, when working with very small pieces, make
sure to invest a dummy object together with the actual
build-up.