GC EUROPE Fujivest Super - Manual (Page 41)

41
Focus Edition from GC
4. Sprueing technique
4.1 Connections to crossbar: 3.5 mm-3 mm.
4.2 Distance from modellation to crossbar: 2.5 mm.
4.3 Thickness of the crossbar: 5 mm-4 mm.
4.4 Thickness of sprues to crossbar: 3 mm.
4.5 The number of separations of the crossbar,
depends on the size of the suprastructures
e.g. (see photograph) separation into 3 parts
for total horseshoe shape.
4.6 Use only one 3 mm sprue per crossbar
separation.
4.7 Attach thin degassing sprues to the
buccal/labial side of the modellation.
The goal of every implant case is a passive fit. As
we know, the thickest casting parts tend to have
porosities and contract more than the thinner
sections, therefore we have two possibilities to
work against this.
First of all we can use an alloy plate from the same
alloy and wax it onto the thickest part.