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International Journal of Computerized Dentistry

Year 2005
Volume 8 , Issue 1

Pages: 47 - 58

The Self-Adjusting Crown (SAC)

S. Reich/M. Wichmann/P Bürgel

When previously using Cerec 3D, the occlusal surface could be designed according to morphologically functional aspects with the aid of a bite registration (static and/or dynamic). In addition, different tooth databases could be used for the design of crowns. However, the relevant design suggestion had then to be manually aligned onto the functional registration by the user. The new Cerec 3D software version R 2005 now promises the automatic adjustment of crown proposals in alignment with the corresponding functional registration. In this case, the crown design selected from the tooth databases is adjusted to the morphology of the functional registration and is therefore modified until light contact points are still present. The procedure of the “self-adjusting crown” is demonstrated by reference to a clinical case. As the name “self-adjusting crown” indicates, this automatic tool is possible only in restorations which have a single-segment preparation margin (crowns).


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