Ivoclar Vivadent IPS Empress CAD Chairside - de-en-es-it-ru - Manual (Page 62)

14
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 considera-
tion 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:
– Die shade
– Shade of the ceramic block
– Shade of the layering ceramic
– 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
preparation 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.