Ivoclar Vivadent IPS e.max CAD Labside - Manual (Page 13)

13
1.5
1.0
1.5
1.5
1.5
1.5
1.5
1.0 1.0
1.5
1.5
1.5
6°
– Static and dynamic antagonist contacts must be taken
into consideration.
– The preparation margins must not be located on
centric antagonist contacts.
– Provide at least 1.5 mm of reduction in the cusp
areas.
– Prepare a circular shoulder with rounded inner edges
or a deep chamfer. Width of the shoulder/chamfer
should be at least 1.0 mm.
– Reduce the anatomical shape and observe the
stipulated minimum thickness. Prepare a circular
shoulder with rounded inner edges or a deep
chamfer. Width of the shoulder/chamfer at least
1.0 mm.
– Reduce the incisal crown third by approx. 1.5 mm.
– Reduce the buccal or lingual area by approx. 1.5 mm.
– For conventional and/or self-adhesive cementation,
the preparation must demonstrate retentive surfaces
Partial crown Posterior crown
1.0
1.0
6°
100-120°
6°
1.0
1.0
– Static and dynamic antagonist contacts must be taken
into consideration.
– The preparation margins must not be located on
centric antagonist contacts.
– A preparation depth of at least 1.0 mm and an
isthmus width of at least 1.0 mm must be observed in
the fissure area.
– Prepare the proximal box with slightly diverging walls
and observe an angle of 100°-120° between the
proximal cavity walls and the prospective proximal
inlay surfaces. For inlays with pronounced convex
cavity walls without adequate support by the proximal
shoulder, marginal ridge contacts should be avoided.
– Round out internal edges in order to prevent stress
concentration within the ceramic material.
– Do not prepare slice-cuts or feather edges.
– Static and dynamic antagonist contacts must be taken
into consideration.
– The preparation margins must not be located on
centric antagonist contacts.
– A preparation depth of at least 1.0 mm and an
isthmus width of at least 1.0 mm must be observed
in the fissure area.
– Prepare the proximal box with slightly diverging walls
and observe an angle of 100°-120° between the
proximal cavity walls and the prospective proximal
onlay surfaces. For onlays with pronounced convex
cavity walls without adequate support by the proximal
shoulder, marginal ridge contacts should be avoided.
– Round out internal edges in order to prevent stress
concentration within the ceramic material.
– Do not prepare slice-cuts or feather edges.
– Provide at least 1.0 mm of reduction in the cusp areas.
Inlay Onlay
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