KLI

Correlation between microhardness and wear resistance of dental alloys against monolithic zirconia

Metadata Downloads
Abstract
PURPOSE. The aim of this study is to compare the hardness according to the conditions of metal alloys. Moreover, the correlation between the cast crown hardness before and after wear testing and the degree of wear for each dental alloy was assessed. MATERIALS AND METHODS. Cast crowns of three metal alloys (Co-Cr, gold, and Ni-Cr alloys) opposing smooth-surface monolithic zirconia were used. The Vickers microhardness of the ingot (which did not undergo wear testing) and the cast crown before and after wear testing were measured for each alloy. Two-way ANOVA and Scheffe tests were used to compare the measured hardness values. Moreover, the Pearson correlation coefficient was used to evaluate the relationship between the surface hardness and the wear of the cast crown (a=.05). Results. There was no significant difference in the hardness before and after wear testing for the gold alloy (P >.05); however, the hardness of the worn surface of the cast crown increased compared to that of the cast crown before the wear tests of Ni-Cr and Co-Cr alloys (P <.05). Furthermore, there was no correlation between the wear and hardness of the cast crown before and after wear testing for all three metal alloys (P >.05). CONCLUSION. There was a significant difference in hardness between dental alloys under the same conditions. No correlation existed between the surface hardness of the cast crown before and after wear testing and the wear of the cast crown.
Author(s)
차민상이상운허윤혁조리라박찬진
Issued Date
2021
Type
Article
Keyword
Dental alloysHardnessWearZirconia
DOI
10.4047/jap.2021.13.3.127
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8731
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_nrf_kci_oai_kci_go_kr_ARTI_9798969&amp;context=PC&amp;vid=ULSAN&amp;lang=ko_KR&amp;search_scope=default_scope&amp;adaptor=primo_central_multiple_fe&amp;tab=default_tab&amp;query=any,contains,Correlation%20between%20microhardness%20and%20wear%20resistance%20of%20dental%20alloys%20against%20monolithic%20zirconia&amp;offset=0&amp;pcAvailability=true
Publisher
JOURNAL OF ADVANCED PROSTHODONTICS
Location
대한민국
Language
영어
ISSN
2005-7806
Citation Volume
13
Citation Number
3
Citation Start Page
127
Citation End Page
135
Appears in Collections:
Medicine > Medicine
Authorize & License
  • Authorize공개
Files in This Item:
  • There are no files associated with this item.

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.