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Report on fractures of trilayered all-ceramic fixed dental prostheses

Belli, Renan
Lohbauer, Ulrich
Published in Case Studies in Engineering Failure Analysis. 2016, vol. 7, p. 71-79
Abstract Three cases of trilayered fixed dental prostheses fractured in vivo are fractographically analyzed to identify causes of failure. In all cases fractures initiated from a preexistent crack/defect in the zirconia framework produced previous to the fusion firing of a lithium disilicate veneering ceramic. In two cases zirconia framework pre-cracks were found to have been infiltrated with the intermediate fusion glass that diffused therein during sintering. This report highlights the susceptibility of zirconia to grinding damage and its role in limiting the lifetime of zirconia-based fixed dental prostheses.
Keywords Dental ceramicZirconiaFractureFractographyDental bridgesCrownsTrilayers
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Research group Groupe Anselm Wiskott-Susanne Scherrer (315)
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BELLI, Renan, SCHERRER, Susanne, LOHBAUER, Ulrich. Report on fractures of trilayered all-ceramic fixed dental prostheses. In: Case Studies in Engineering Failure Analysis, 2016, vol. 7, p. 71-79. doi: 10.1016/j.csefa.2016.10.001 https://archive-ouverte.unige.ch/unige:99759

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Deposited on : 2017-11-28

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