Comparison between two post-dentin bond strength measurement methods

Abstract The push-out (PO) test and the diametral compression (DC) test were performed to compare the merits of two post-dentin bond strength measurement methods. Compared with the push-out test, the disk in DC provided post-dentin bond strength measurements that were more precise. The load-displace...

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Autores principales:	Laikuan Zhu, Yuping Li, Yung-Chung Chen, Carola A. Carrera, Chong Wu, Alex Fok
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6a972aa4dfce48f581198bfd1138045b
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spelling	oai:doaj.org-article:6a972aa4dfce48f581198bfd1138045b2021-12-02T15:08:19ZComparison between two post-dentin bond strength measurement methods10.1038/s41598-018-20891-32045-2322https://doaj.org/article/6a972aa4dfce48f581198bfd1138045b2018-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-20891-3https://doaj.org/toc/2045-2322Abstract The push-out (PO) test and the diametral compression (DC) test were performed to compare the merits of two post-dentin bond strength measurement methods. Compared with the push-out test, the disk in DC provided post-dentin bond strength measurements that were more precise. The load-displacement curves from the DC test were much smoother and more linear up to the point of fracture when compared to those from the PO test. Compared to the PO test, DC is easier to perform for determining the bond strength between posts and dentin. No specimen alignment is needed in the DC test, and it produces a smaller standard deviation in the measured bond strength. The main disadvantage of the DC test, however, is that finite element analysis (FEA) is required to calculate the bond strength. The shear bond strength given by the PO test based on the simple formula is not valid, though, and the peak failure load is dependent on friction at the post-dentin interface.Laikuan ZhuYuping LiYung-Chung ChenCarola A. CarreraChong WuAlex FokNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Laikuan Zhu Yuping Li Yung-Chung Chen Carola A. Carrera Chong Wu Alex Fok Comparison between two post-dentin bond strength measurement methods
description	Abstract The push-out (PO) test and the diametral compression (DC) test were performed to compare the merits of two post-dentin bond strength measurement methods. Compared with the push-out test, the disk in DC provided post-dentin bond strength measurements that were more precise. The load-displacement curves from the DC test were much smoother and more linear up to the point of fracture when compared to those from the PO test. Compared to the PO test, DC is easier to perform for determining the bond strength between posts and dentin. No specimen alignment is needed in the DC test, and it produces a smaller standard deviation in the measured bond strength. The main disadvantage of the DC test, however, is that finite element analysis (FEA) is required to calculate the bond strength. The shear bond strength given by the PO test based on the simple formula is not valid, though, and the peak failure load is dependent on friction at the post-dentin interface.
format	article
author	Laikuan Zhu Yuping Li Yung-Chung Chen Carola A. Carrera Chong Wu Alex Fok
author_facet	Laikuan Zhu Yuping Li Yung-Chung Chen Carola A. Carrera Chong Wu Alex Fok
author_sort	Laikuan Zhu
title	Comparison between two post-dentin bond strength measurement methods
title_short	Comparison between two post-dentin bond strength measurement methods
title_full	Comparison between two post-dentin bond strength measurement methods
title_fullStr	Comparison between two post-dentin bond strength measurement methods
title_full_unstemmed	Comparison between two post-dentin bond strength measurement methods
title_sort	comparison between two post-dentin bond strength measurement methods
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/6a972aa4dfce48f581198bfd1138045b
work_keys_str_mv	AT laikuanzhu comparisonbetweentwopostdentinbondstrengthmeasurementmethods AT yupingli comparisonbetweentwopostdentinbondstrengthmeasurementmethods AT yungchungchen comparisonbetweentwopostdentinbondstrengthmeasurementmethods AT carolaacarrera comparisonbetweentwopostdentinbondstrengthmeasurementmethods AT chongwu comparisonbetweentwopostdentinbondstrengthmeasurementmethods AT alexfok comparisonbetweentwopostdentinbondstrengthmeasurementmethods
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Comparison between two post-dentin bond strength measurement methods

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