Ivoclar Vivadent IPS e.max CAD Chairside - Manual (Page 13)

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Shade determination of the natural tooth
After tooth cleaning, the tooth shade of the non-prepared tooth and/or the adjacent teeth is deter-
mined with the help of a shade guide. Individual characteristics have to be considered when determin-
ing 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 in daylight. Furthermore, the patient should not wear clothes of intense colours and/or lip-
stick.
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 allows the clinician to select
the appropriate IPS e.max CAD blocks in terms of shade and translucency
based on the indication.
Please refer to the table on page 49 for block selection.
Which block should be used?
The suitable block is selected on the basis of the following criteria:
1. Desired tooth shade
2. Preparation shade or abutment shade
3. Type of restoration
4. Restoration thickness and/or preparation depth
5. Processing technique (staining and cut-back technique)
6. Cementation material
Please refer to the table on page 49 for block selection.
Overview of the Treatment Procedure
Example of the preparation shade effect
Crown made of IPS e.max CAD HT B1 on different preparation shades.