Ivoclar Vivadent IPS e.max Clinical Guide - Manual (Page 10)

10
Practical procedure for restorations with IPS e.max | Preparation
Occlusal veneer
− Evenly reduce the anatomical shape while observing the stipulated minimum thicknesses.
– Prepare a circular shoulder with rounded inner edges or a chamfer at an angle of approximately
10 to 30 degrees.
– Ensure that the width of the circular shoulder/chamfer is at least 1.0 mm.
– Reduce the occlusal part by at least 1.0 mm.
Starting situation Orientation groove
central fissure
Orientation grooves
on the cusps
Shortening
the occlusal surface
Creating the circular
preparation margin
Proximal preparation Finishing the preparation Smoothing the preparation
1.0
1.0
1.0
1.0
1.0
LS
2
Clinical pictures: Prof. Dr D. Edelhoff, Germany