Fracture strength of yttria-stabilized zirconium-dioxide (Y-TZP) fixed dental prostheses (FDPs) with different abutment core thicknesses and connector dimensions

DSpace Repository

Fracture strength of yttria-stabilized zirconium-dioxide (Y-TZP) fixed dental prostheses (FDPs) with different abutment core thicknesses and connector dimensions

Show full item record

Files for download

Find Full text There are no files associated with this item..

Facebook

Simple item record

Publication Article, peer reviewed scientific
Title Fracture strength of yttria-stabilized zirconium-dioxide (Y-TZP) fixed dental prostheses (FDPs) with different abutment core thicknesses and connector dimensions
Author(s) Ambré, Marcus J ; Aschan, Fredrik ; Vult von Steyern, Per
Date 2013
English abstract
Purpose: The aim of this study was to investigate the fracture strength and fracture mode of yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) posterior three-unit FDPs with varying connector dimension and abutment core thickness. Materials and Methods: Seventy 3-unit posterior FDP cores made of Y-TZP were divided into 7 groups with varying connector dimensions and abutment core thicknesses. All the FDPs underwent a simulated aging process including veneering, firing applications, thermocycling, and cyclic preloading. Finally the FDPs were subjected to load until fracture. Results: Significant difference was seen between the different subgroups (p < 0.05). Groups with the same connector dimension showed no significant difference in fracture strength. All fractures of the specimens involved the connector. Conclusions: Within the limitations of this in vitro study, it can be concluded that the strength of an all-ceramic Y-TZP FDP beam depends more on the connector dimension than on the thickness of the abutment core. Results indicate that the minimum abutment core thickness of an all-ceramic Y-TZP FDP might be reduced, compared to the recommended thickness, without reducing the strength of the reconstruction. This indication, however, needs to be verified by further studies before being considered generally applicable.
DOI http://dx.doi.org/10.1111/jopr.12003 (link to publisher's fulltext)
Publisher Wiley-Blackwell
Host/Issue Journal of prosthodontics;5
Volume 22
ISSN 1059-941X
Pages 377–382
Language eng (iso)
Subject(s) yttria-stabilized zirconium-dioxide
fixed dental prosthesis
fracture strength
connector dimension
abutment core thickness
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/15065 (link to this page)

This item appears in the following Collection(s)

Show full item record

Search


Browse

My Account

Statistics