Biaxial flexural strength of three ceramic oxide core materials

We are excited to announce that the repository will soon undergo an upgrade, featuring a new look and feel along with several enhanced features to improve your experience. Please be on the lookout for further updates and announcements regarding the launch date. We appreciate your support and look forward to unveiling the improved platform soon.

Show simple item record

dc.contributor.author Dullabh, Hemant D.
dc.contributor.author Herbst, Dirk
dc.contributor.author Sykes, Leanne M.
dc.contributor.author Biseswar, Nadir
dc.date.accessioned 2018-01-12T05:52:15Z
dc.date.available 2018-01-12T05:52:15Z
dc.date.issued 2017-03
dc.description.abstract INTRODUCTION : Brittleness and low strength render conventional ceramic systems unsuitable for routine restorative use in molars. Modern, high-strength ceramic core materials such as high purity aluminum oxide (Al2O3) and yttrium - partially stabilized zirconia (Y-PSZ) have been designed for aesthetic, metal-free, all-ceramics in posterior teeth. AIMS AND OBJECTIVES : To compare the biaxial flexural strengths 1. of these two core materials. 2. To compare the strengths of Y-PSZ samples produced by two manufacturers. MATERIALS AND METHODS : Three groups of discs measuring 16mm diameter and 2mm thickness were prepared for each of the sample materials, high purity Al2O3, commercially available as Turkom-Cera, and Y-PSZ, commercially available as Cercon and LAVA. The Biaxial flexural strengths were measured using a Zwick Z010 Material Testing Machine. Reliability was compared using Weibull Moduli. RESULTS : Mean strengths for LAVA, Cercon and Turkom-Cera were 866.44, 586.92, 155.71 MPa respectively. Statistically significant differences were shown between the mean values. DISCUSSION AND CONCLUSION : This project showed that the samples of Y-PSZ had higher biaxial flexural strengths than those of high purity Al2O3. The biaxial flexural strengths of Y-PSZ, sourced from two manufacturers, are significantly different. It is suggested that Y-PSZ is suitable and indicated for restorative use in molar regions. en_ZA
dc.description.department Prosthodontics en_ZA
dc.description.librarian am2018 en_ZA
dc.description.uri https://www.sada.co.za/the-sadj en_ZA
dc.identifier.citation Dullabh, H.D., Herbst, D., Sykes, L.M. & Biseswar, N. 2017, 'Biaxial flexural strength of three ceramic oxide core materials', South African Dental Journal, vol. 72, no. 2, pp. 56-61. en_ZA
dc.identifier.issn 1029-4864 (print)
dc.identifier.issn 2519-0105 (online)
dc.identifier.uri http://hdl.handle.net/2263/63505
dc.language.iso en en_ZA
dc.publisher South African Dental Association en_ZA
dc.rights © 2017 E-Doc cc en_ZA
dc.subject High-strength ceramics en_ZA
dc.subject Tensile stress en_ZA
dc.subject Biaxial flexural strength en_ZA
dc.subject Ceramic oxide core materials en_ZA
dc.title Biaxial flexural strength of three ceramic oxide core materials en_ZA
dc.type Article en_ZA


Files in this item

This item appears in the following Collection(s)

Show simple item record