Ivoclar Vivadent IPS e.max ZirPress - Manual (Page 49)

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Contouring
Fabricate the wax-up using wax that burns out without leaving residue. The following procedure has to be applied for the
gingiva technique:
– Isolate the plaster dies with a commercial plaster-wax separator.
– Weigh the zirconium oxide framework onto which the IPS e.max Ceram ZirLiner has been fired and record weight. The
weight is used to determine the wax weight after contouring.
– Subsequently, secure the framework on the model in the proper position and attach the margins with wax.
– Contour the gingival protions. In order to exactly define the position and extension of gingival portions, it is also
possible to fabricate a fully anatomical wax-up with subsequent cut-back.
– Observe a wax thickness of at least 0.7 mm to avoid incomplete press results.
– The maximum thickness of 2.5 mm for free-standing (not framework-supported) gingival parts has to be observed.
Palatal view of the waxed up gingival parts Secure the zirconium oxide framework on the model, attach margins with wax and contour the
gingival portions. Thickness of the gingival portions between 0.7 and 2.5 mm.
In order to exactly define the position and extension of gingival portions, it is also possible to
fabricate a fully anatomical wax-up with subsequent cut-back.