Ivoclar Vivadent PS Empress CAD Chairside - Manual (Page 13)

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Shade determination
The correct tooth shade is the basis for a restoration with a life-like appearance. After tooth cleaning, the tooth shade of
the non-prepared tooth and/or the adjacent teeth is determined. Individual characteristics have to be taken into consider-
ation when determining the tooth shade. If a crown preparation is planned, for example, the cervical shade should also be
determined. In order to achieve true-to-nature results, shade determination should be carried out at daylight. Furthermore,
the patient should not wear clothes of intensive colours and/or lipstick. Basically, it has to be kept in mind that the final
shade of the restoration is the result of the following individual shades:
– the shade of the preparation;
– the shade of the ceramic block;
– the shade of the layering ceramic;
– the shade of the cementation material.
IPS Natural Die Material
In order to facilitate the reproduction of the tooth shade, the shade of
the prepared tooth can be determined with the help of the IPS Natural
Die Material shade guide. This facilitates the fabrication of the all-
ceramic restoration and the individual characteristics of the prepara-
tion may also be taken into consideration. By fabricating a working
die made of IPS Natural Die Materials in the respective shade of the
preparation, the shade and brightness value of the IPS Empress CAD
restorations may be checked during the individual fabrication steps.
IPS Empress
®
CAD
– Overview of the T
reatment Pr
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