Ivoclar Vivadent Zenostar - Manual (Page 20)

20
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Single-tooth
restorations -
anterior region
Place the restorations on their
labial surface. Place the restorations on their
lingual surface. Do not place the restorations on
their marginal edge (crown
margin).
Single-tooth
restorations -
posterior region
Place the restorations on their
occlusal surface. Do not place the restorations on
their marginal edge (crown
margin).
3-unit anterior
restorations
Place the restorations on their
labial surface and provide
support to the pontic. If the
restoration "tilts", use an
alternative positioning. Position on the incisal edges.
The pontic must also rest on the
sinter tray. Restorations should not solely
rest on their marginal edges.
3-unit posterior
restorations
Place the restorations on the
buccal or lingual surfaces
depending on their curvature.
Abutment crowns do not
necessarily have to be in contact
with the sinter tray. The pontic
must be supported. Restorations should not solely
rest on their marginal edges
(crown margins). The pontic
should be supported on the
basal side. If the restoration does not rest
on the pontic, do not place it on
its occusal surface.