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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


Fall 2012
Volume 15 , Issue 3

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Reliability of Nonretentive All-Ceramic CAD/CAM Overlays

Arnetzl, Gerwin V. / Arnetzl, Gerwin

Pages: 185 - 197

Intracoronal restorations have a variable risk of cusp fracture depending on the amount of tooth structure remaining. All-ceramic restorations with a cusp-supporting design could be a long-lasting alternative. The aim of this study was to verify the clinical reliability of occlusal veneers. A total of 286 occlusal veneers made of Vita Mark II ceramic that were fabricated and inserted in 244 patients from 2003 to 2004 using the Cerec method with an optimized ceramic design were periodically re-assessed over the following years. Based on the fracture rate observed over 93 months of follow-up, the probability of survival was 99.3%, demonstrating the excellent practical suitability of the method. In light of this, it is worth reconsidering the question of treatment with intracoronal restorations versus occlusal veneers in the posterior region.

Keywords: Cerec, overlay, all-ceramic, occlusal veneer, fracture analysis, survival rate

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