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

10
Shade determination of the natural tooth
After tooth cleaning, the tooth shade of the non-prepared tooth and/or the adjacent teeth is
determined with the help of a shade guide. Individual characteristics have to be considered when
determining the tooth shade. If a crown preparation is planned, for example, the cervical shade should
also be determined. In order to achieve the best possible 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.
Die shade selection
In order to facilitate the reproduction of the desired tooth shade, the shade of the preparation is
determined with the help of the IPS Natural Die Material shade guide. This enables the technician to
fabricate a model die similar to the preparation of the patient, on the basis of
which the correct shade and brightness values of the all-ceramic restorations
may be selected.
IPS e.max Ceram Material Shade Guides
For IPS e.max Ceram, the material shade guides are an integral part of
the product concept. For reasons of light refraction, the dentin shade
tabs have been given an anatomical shape and surface structure. All
the other shade tabs demonstrate a slight wedge shape, in order to
better illustrate the translucency of the individual materials. The shade
tabs are fired from the original ceramic materials. To facilitate the
distinction from the existing material shade guides (e.g. IPS d.SIGN,
IPS InLine, SR Adoro), the rods and holders of the IPS e.max Ceram
material shade guides are light-grey.