Caruana, K, Whilte, AJ, Bubb, NL et al. (1 more author) (2015) Abrasivity of Yttria Tetragonal Zirconia Polycrystal (Y-TZP) to dental enamel in comparison to noble white high palladium alloy. International Journal of Dental Science and Research, 2 (1). 2 - 7. ISSN 2213-9974
Abstract
Objectives: To test the wear of enamel against Yttria Tetragonal Zirconia Polycrystals (Y-TZP) in comparison to the wear of enamel against a noble white high Palladium alloy. Methods: A total of 20 specimens were used, 10 of Y-TZP and 10 of High Palladium alloy, both were subjected to 202,800 contacts against an enamel rod 2x2 mm in cross section under a mean load of 475.04g leading to a mean force of 4.66 N in a Wilson Wear Machine. The specimens were kept in Dulbecco’s phosphate buffered saline at a pH of 7 and the enamel rods were measured before and after the experiment for loss of enamel height (mm). Results The mean wear caused by the Y-TZP and the High Palladium alloy tested was 0.0912 mm, and 0.0113 mm respectively. This difference was statistically significant (p = 0.012 (p<0.05)). Significance It is recommended that Y-TZP is not to be used to form the occlusal surfaces of indirect restorations due to its high abrasive potential with respect to dental enamel.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2015, International Journal of Dental Science and Research Published by Reed Elsevier India Pvt. Ltd. All rights reserved. This is an author produced version of a paper published in International Journal of Dental Science and Research. Uploaded in accordance with the publisher's self-archiving policy |
Keywords: | Abrasivity; Yttria Tetragonal Zirconia Polycrystal; Y-TZP; High Palladium Alloy |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Dentistry (Leeds) > Oral Biology (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 25 Jun 2015 11:55 |
Last Modified: | 17 May 2016 03:45 |
Published Version: | http://dx.doi.org/10.1016/j.ijdsr.2015.04.002 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.ijdsr.2015.04.002 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:87365 |