Comparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times

Introduction: yttrium-stabilized zirconium dioxide (zirconia) has been used to manufacture fixed partial prosthesis due to its high flexural strength. However, there are no available studies comparing the effect of two sintering techniques on flexural strength. This study aims to compare the flexura...

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Autores principales:	Edgar Torres-Durán, Elías George-Díaz, Ismer Enrique Tami-Parada, Jessika Johanna Gutiérrez-Ortiz
Formato:	article
Lenguaje:	EN
Publicado:	Universidad de Antioquia 2020
Materias:	flexural strength mechanical properties zirconium dioxide zro2 Dentistry RK1-715
Acceso en línea:	https://doaj.org/article/36ef7425bce34d768be2e04e39472c9a
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spelling	oai:doaj.org-article:36ef7425bce34d768be2e04e39472c9a2021-11-27T16:27:35ZComparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times2145-767010.17533/udea.rfo.v32n2a7https://doaj.org/article/36ef7425bce34d768be2e04e39472c9a2020-11-01T00:00:00Zhttps://revistas.udea.edu.co/index.php/odont/article/view/339693https://doaj.org/toc/2145-7670Introduction: yttrium-stabilized zirconium dioxide (zirconia) has been used to manufacture fixed partial prosthesis due to its high flexural strength. However, there are no available studies comparing the effect of two sintering techniques on flexural strength. This study aims to compare the flexural strength of zirconia sheets manufactured with two sintering techniques. Method: for this in vitro study, three zirconia disks were used (Upcera: Super Translucent (ST): 1200 MPa, Multi-Layer (ML): 600 MPa and High Translucent (HT): 1200 MPa), using an Isomet® cutter to prepare 60 sheets 2 mm thick, 5 mm wide and 37 mm long. These sheets were randomly distributed into two groups of 30: the first group was sintered for 8 hours at 1,530°C and the second group was subjected to fast sintering for 3 hours at 1,530°C. The flexural strength in Newton was measured on an Instrom® 3366 Universal Testing Machine. The results were converted from N to MPa and compared by ANOVA and t test. Results: no statistically significant difference was found in the flexural strength of the two groups (p>0,05). Conclusion: the two compared sintering procedures do not affect the flexural strength of zirconia sheets.Edgar Torres-DuránElías George-DíazIsmer Enrique Tami-ParadaJessika Johanna Gutiérrez-OrtizUniversidad de Antioquiaarticleflexural strengthmechanical propertieszirconium dioxidezro2DentistryRK1-715ENRevista Facultad de Odontología Universidad de Antioquia, Vol 32, Iss 2, Pp 75-81 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	flexural strength mechanical properties zirconium dioxide zro2 Dentistry RK1-715
spellingShingle	flexural strength mechanical properties zirconium dioxide zro2 Dentistry RK1-715 Edgar Torres-Durán Elías George-Díaz Ismer Enrique Tami-Parada Jessika Johanna Gutiérrez-Ortiz Comparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times
description	Introduction: yttrium-stabilized zirconium dioxide (zirconia) has been used to manufacture fixed partial prosthesis due to its high flexural strength. However, there are no available studies comparing the effect of two sintering techniques on flexural strength. This study aims to compare the flexural strength of zirconia sheets manufactured with two sintering techniques. Method: for this in vitro study, three zirconia disks were used (Upcera: Super Translucent (ST): 1200 MPa, Multi-Layer (ML): 600 MPa and High Translucent (HT): 1200 MPa), using an Isomet® cutter to prepare 60 sheets 2 mm thick, 5 mm wide and 37 mm long. These sheets were randomly distributed into two groups of 30: the first group was sintered for 8 hours at 1,530°C and the second group was subjected to fast sintering for 3 hours at 1,530°C. The flexural strength in Newton was measured on an Instrom® 3366 Universal Testing Machine. The results were converted from N to MPa and compared by ANOVA and t test. Results: no statistically significant difference was found in the flexural strength of the two groups (p>0,05). Conclusion: the two compared sintering procedures do not affect the flexural strength of zirconia sheets.
format	article
author	Edgar Torres-Durán Elías George-Díaz Ismer Enrique Tami-Parada Jessika Johanna Gutiérrez-Ortiz
author_facet	Edgar Torres-Durán Elías George-Díaz Ismer Enrique Tami-Parada Jessika Johanna Gutiérrez-Ortiz
author_sort	Edgar Torres-Durán
title	Comparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times
title_short	Comparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times
title_full	Comparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times
title_fullStr	Comparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times
title_full_unstemmed	Comparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times
title_sort	comparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times
publisher	Universidad de Antioquia
publishDate	2020
url	https://doaj.org/article/36ef7425bce34d768be2e04e39472c9a
work_keys_str_mv	AT edgartorresduran comparisonoftheflexuralstrengthofsheetsmanufacturedinthreetypesofzirconiumdioxidewithtwosinteringtimes AT eliasgeorgediaz comparisonoftheflexuralstrengthofsheetsmanufacturedinthreetypesofzirconiumdioxidewithtwosinteringtimes AT ismerenriquetamiparada comparisonoftheflexuralstrengthofsheetsmanufacturedinthreetypesofzirconiumdioxidewithtwosinteringtimes AT jessikajohannagutierrezortiz comparisonoftheflexuralstrengthofsheetsmanufacturedinthreetypesofzirconiumdioxidewithtwosinteringtimes
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Comparison of the flexural strength of sheets manufactured in three types of zirconium dioxide with two sintering times

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