Glass Ceramic CAD/CAM crowns and severely altered posterior teeth: a three levels study

Glass Ceramic CAD/CAM crowns and severely altered posterior teeth: a three levels study ceramic crowns in the posterior area, molars and premolars, remains a real challenge. The purpose of this article is to identify and evaluate the parameters that can significantly influence their resistance when preparing a tooth. The analysis proposed in this article relies on interrelated studies conducted at three levels: in vitro (mechanical tests), in silico (finite elements simulations) and in vivo (clinical survival rates). The in vitro and the in silico studies proved that an appropriate variation of the geometric design of the preparations enables to increase up to 80% the mechanical strength of ceramic reconstructions. The in vivo clinical study of CAD/CAM full ceramic crowns was performed in accordance with the principles stated within the in vitro and the in silico studies and provided a 98.97% success rate over a 6 years period. The variations of geometric design parameters for dental preparation allows for reconstructions with a mechanical breaking up to 80% higher than that of a non-appropriate combination. These results are confirmed in clinical practice. 1 Introduction The start of the fatal “Molar life cycle”, also defined as the “Cycle of Death” by Simonsen [1, 2], includes a succession * Jean-Cédric Durand of increasingly invasive and destructive http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Medicine Springer Journals

Glass Ceramic CAD/CAM crowns and severely altered posterior teeth: a three levels study

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Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media, LLC
Subject
Materials Science; Biomaterials; Biomedical Engineering; Regenerative Medicine/Tissue Engineering; Polymer Sciences; Ceramics, Glass, Composites, Natural Materials; Surfaces and Interfaces, Thin Films
ISSN
0957-4530
eISSN
1573-4838
D.O.I.
10.1007/s10856-017-5948-x
Publisher site
See Article on Publisher Site

Abstract

ceramic crowns in the posterior area, molars and premolars, remains a real challenge. The purpose of this article is to identify and evaluate the parameters that can significantly influence their resistance when preparing a tooth. The analysis proposed in this article relies on interrelated studies conducted at three levels: in vitro (mechanical tests), in silico (finite elements simulations) and in vivo (clinical survival rates). The in vitro and the in silico studies proved that an appropriate variation of the geometric design of the preparations enables to increase up to 80% the mechanical strength of ceramic reconstructions. The in vivo clinical study of CAD/CAM full ceramic crowns was performed in accordance with the principles stated within the in vitro and the in silico studies and provided a 98.97% success rate over a 6 years period. The variations of geometric design parameters for dental preparation allows for reconstructions with a mechanical breaking up to 80% higher than that of a non-appropriate combination. These results are confirmed in clinical practice. 1 Introduction The start of the fatal “Molar life cycle”, also defined as the “Cycle of Death” by Simonsen [1, 2], includes a succession * Jean-Cédric Durand of increasingly invasive and destructive

Journal

Journal of Materials Science: Materials in MedicineSpringer Journals

Published: Aug 19, 2017

References

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