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Fracture resistance and failure mode of layered translucent zirconia with different crown designs

Dental Materials Journal, 2021, pp.2021-051

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Title:
Fracture resistance and failure mode of layered translucent zirconia with different crown designs
Author: AL-QAYSI, Saif H. ; SALEH, Abdul Rahman MOHAMMED ; EL-DAMANHOURY, Hatem M.
Subjects: Fully veneered zirconia ; Monolithic zirconia ; Partially veneered zirconia ; Translucent zirconia
Is Part Of: Dental Materials Journal, 2021, pp.2021-051
Description: This study investigated the impact of different veneering design on the fracture resistance and failure mode of layered translucent zirconia crowns, compared to the full monolithic zirconia crowns. Ninety crowns with different designs were divided into six groups (n=15); one fully contoured monolithic crown (FMC), one fully veneered with porcelain (FVC), or four partially veneered designs. All crowns were thermo-cycled, and then loaded to failure in a universal testing machine. The fracture resistance (N) and fracture modes were assessed. One-way ANOVA was performed followed by Tukey’s multiple comparison (α<0.05). Results demonstrated that all the tested partially veneered designs exhibited enhanced fracture resistances and were comparable to that of the full-contour monolithic translucent zirconia crowns.
Publisher: The Japanese Society for Dental Materials and Devices
Language: English
Identifier: ISSN: 0287-4547
EISSN: 1881-1361
DOI: 10.4012/dmj.2021-051
Source: Alma/SFX Local Collection

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