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International Journal of Computerized Dentistry

Edited by B. Reiss, K. Wiedhahn, and O. Schenk

Official publication of the International Society of Computerized Dentistry

ISSN 1463-4201


Summer 2010
Volume 13 , Issue 2

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The Computer-aided Overpress (CAO) Technique

Ellerbrock, Christof

Pages: 155 - 167

It is possible for the first time with the computer-aided overpress technique to produce all-ceramic fixed dental prostheses (FDP) largely by CAD/CAM methods. The advantage of the technology is that a workflow is created in which already acquired data are used to the maximum within the Cerec software, and thus the manufacturing depth can be increased. This happens both by production of a crown or FDP framework, and by the additional design of the crown or FDP surface. Also, no joint seam is created between the framework ceramic and the sleeve ceramic by overpressing, since the two different ceramics do not have to be bonded with one another. In addition, subsequent changes can be made to the finished workpiece without having to take any bonding materials into account. Keywords: computer-aided overpress, all-ceramic FDP, overpress technique, pressed ceramics, sandwich technique, CAD/CAM restoration, all-ceramic milled FDP

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