Influence of different surface treatments on the fracture toughness of a commercial ZTA dental ceramic
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392007000100014 |
Resumo: | The objective of this study was to investigate how mechanical surface treatments performed for removal of excess of molten glass, influence the fracture toughness of a dental zirconia toughened alumina (In-Ceram® Zirconia). Infiltrated ZTA disks were submitted to three different surface treatments (grinding, sandblasting and grinding + sandblasting + annealing). Fracture toughness was accessed through indentation strength test (IS). X ray diffraction was used to investigate the metastability of tetragonal zirconia particles under all treatments proposed. Kruskall-Wallis non-parametrical test and Weibull statistics were used to analyze the results. Grinding (group 1) introduced defects which decreased the fracture toughness and reliability, presenting the lowest K IC. On the other hand, grinding followed by sandblasting and annealing (group 3) presented the highest K IC. Sandblasting (group 2) presented the highest reliability but lower K IC compared to group 3. |
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Influence of different surface treatments on the fracture toughness of a commercial ZTA dental ceramicdental ceramicfracture toughnesstransformation tougheningWeibull distributionThe objective of this study was to investigate how mechanical surface treatments performed for removal of excess of molten glass, influence the fracture toughness of a dental zirconia toughened alumina (In-Ceram® Zirconia). Infiltrated ZTA disks were submitted to three different surface treatments (grinding, sandblasting and grinding + sandblasting + annealing). Fracture toughness was accessed through indentation strength test (IS). X ray diffraction was used to investigate the metastability of tetragonal zirconia particles under all treatments proposed. Kruskall-Wallis non-parametrical test and Weibull statistics were used to analyze the results. Grinding (group 1) introduced defects which decreased the fracture toughness and reliability, presenting the lowest K IC. On the other hand, grinding followed by sandblasting and annealing (group 3) presented the highest K IC. Sandblasting (group 2) presented the highest reliability but lower K IC compared to group 3.ABM, ABC, ABPol2007-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392007000100014Materials Research v.10 n.1 2007reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392007000100014info:eu-repo/semantics/openAccessSilva,Flavio Teixeira daZacché,Marcio Alessandro NegrellyAmorim,Helio Salim deeng2007-05-03T00:00:00Zoai:scielo:S1516-14392007000100014Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2007-05-03T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Influence of different surface treatments on the fracture toughness of a commercial ZTA dental ceramic |
title |
Influence of different surface treatments on the fracture toughness of a commercial ZTA dental ceramic |
spellingShingle |
Influence of different surface treatments on the fracture toughness of a commercial ZTA dental ceramic Silva,Flavio Teixeira da dental ceramic fracture toughness transformation toughening Weibull distribution |
title_short |
Influence of different surface treatments on the fracture toughness of a commercial ZTA dental ceramic |
title_full |
Influence of different surface treatments on the fracture toughness of a commercial ZTA dental ceramic |
title_fullStr |
Influence of different surface treatments on the fracture toughness of a commercial ZTA dental ceramic |
title_full_unstemmed |
Influence of different surface treatments on the fracture toughness of a commercial ZTA dental ceramic |
title_sort |
Influence of different surface treatments on the fracture toughness of a commercial ZTA dental ceramic |
author |
Silva,Flavio Teixeira da |
author_facet |
Silva,Flavio Teixeira da Zacché,Marcio Alessandro Negrelly Amorim,Helio Salim de |
author_role |
author |
author2 |
Zacché,Marcio Alessandro Negrelly Amorim,Helio Salim de |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Silva,Flavio Teixeira da Zacché,Marcio Alessandro Negrelly Amorim,Helio Salim de |
dc.subject.por.fl_str_mv |
dental ceramic fracture toughness transformation toughening Weibull distribution |
topic |
dental ceramic fracture toughness transformation toughening Weibull distribution |
description |
The objective of this study was to investigate how mechanical surface treatments performed for removal of excess of molten glass, influence the fracture toughness of a dental zirconia toughened alumina (In-Ceram® Zirconia). Infiltrated ZTA disks were submitted to three different surface treatments (grinding, sandblasting and grinding + sandblasting + annealing). Fracture toughness was accessed through indentation strength test (IS). X ray diffraction was used to investigate the metastability of tetragonal zirconia particles under all treatments proposed. Kruskall-Wallis non-parametrical test and Weibull statistics were used to analyze the results. Grinding (group 1) introduced defects which decreased the fracture toughness and reliability, presenting the lowest K IC. On the other hand, grinding followed by sandblasting and annealing (group 3) presented the highest K IC. Sandblasting (group 2) presented the highest reliability but lower K IC compared to group 3. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392007000100014 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392007000100014 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392007000100014 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.10 n.1 2007 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212658514493440 |