Ivoclar Vivadent IPS e.max CAD Chairside v.1 - Handbuch (Seite 100)

48
e.max
® CAD
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Table on Block Selection
IPS
The blocks are selected on the basis of the desired tooth shade (Bleach BL or A-D), the determined shade of the prepara-
tion (ND 1 - ND 9), and/or abutment shade, as well as the desired processing technique. The following procedure results in
the selection of the appropriate block:
1. Select the column with the desired tooth shade.
2. Select the line with the shade of the preparation.
3. Select the adequate block in accordance with the desired processing technique (staining or cut-back technique) in the
intersection field.
4. If a certain combination is not possible (e.g. HT block on a dark preparation), select a block with a lower translucency.
– The recommendations for the block selection correlate with the indications as well as the preparation guide-
lines and minimum layer thicknesses.
– In case of shade deviations, adjust the restoration shade by means of characterization with IPS e.max CAD
Crystall./ Shades and Stains.
– If (highly) translucent blocks are used, the layer thickness and die shade must be carefully observed.
– With thicker layers, a block with lower translucency must be selected to prevent a loss in brightness
(graying).
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