Avaliação da tenacidade à fratura de diferentes sistemas cerâmicos
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1678-77572003000100012 http://hdl.handle.net/11449/130841 |
Resumo: | Although ceramics present high compressive strength, they are brittle materials due to their low tensile strength so they have lower capacity to absorb shocks. This study evaluated the fracture toughness of different ceramic systems, which refers to the ability of a friable material to absorb defformation energy. Three ceramic systems were investigated. Ten cylindrical samples (5,0mm x 3,0mm), were obtained from each ceramic material as follows: G1- 10 samples of Vitadur Alpha (Vita-Zahnfabrik); G2- 10 samples of IPS Empress2 (Ivoclar-Vivadent); G3- 10 samples of In-Ceram Alumina (Vita-Zahnfabrik). Fracture toughness values were collected upon indentation tests that were performed under a heavy load. A microhardness tester (Digital Microhardness Tester FM) utilized a 500gf load cell during 10seconds to perform four impressions on each sample. Statistically significant results were observed (ANOVA and Kruskal-Wallis tests). In-Ceram Alumina presented the highest median toughness values (2,96N/m3/2), followed by Vitadur Alpha (2,08N/m3/2) and IPS Empress2 (1,05N/m3/2). It may be concluded that different ceramic systems present distinct fracture toughness values, thus In-Ceram is capable of absorbing superior stress when compared to Vitadur Alpha and IPS Empress2. |
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Avaliação da tenacidade à fratura de diferentes sistemas cerâmicosRelative fracture toughness of differents dental ceramicsDental ceramicsFracture toughnessand Indentation methodCerâmicas odontológicasTenacidade à fraturaMétodo da indentaçãoAlthough ceramics present high compressive strength, they are brittle materials due to their low tensile strength so they have lower capacity to absorb shocks. This study evaluated the fracture toughness of different ceramic systems, which refers to the ability of a friable material to absorb defformation energy. Three ceramic systems were investigated. Ten cylindrical samples (5,0mm x 3,0mm), were obtained from each ceramic material as follows: G1- 10 samples of Vitadur Alpha (Vita-Zahnfabrik); G2- 10 samples of IPS Empress2 (Ivoclar-Vivadent); G3- 10 samples of In-Ceram Alumina (Vita-Zahnfabrik). Fracture toughness values were collected upon indentation tests that were performed under a heavy load. A microhardness tester (Digital Microhardness Tester FM) utilized a 500gf load cell during 10seconds to perform four impressions on each sample. Statistically significant results were observed (ANOVA and Kruskal-Wallis tests). In-Ceram Alumina presented the highest median toughness values (2,96N/m3/2), followed by Vitadur Alpha (2,08N/m3/2) and IPS Empress2 (1,05N/m3/2). It may be concluded that different ceramic systems present distinct fracture toughness values, thus In-Ceram is capable of absorbing superior stress when compared to Vitadur Alpha and IPS Empress2.Departamento de Odontologia Restauradora, Faculdade de Odontologia de São José dos Campos, UNESP.Departamento de Odontologia Restauradora, Faculdade de Odontologia de São José dos Campos, UNESP.Journal Of Applied Oral Science : Revista FobUniversidade Estadual Paulista (Unesp)Pagani, Clovis [UNESP]Miranda, Carolina BaptistaBottino, Marco Cícero2015-12-07T15:29:42Z2015-12-07T15:29:42Z2003info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article69-75application/pdfhttp://dx.doi.org/10.1590/S1678-77572003000100012Journal Of Applied Oral Science : Revista Fob, v. 11, n. 1, p. 69-75, 2003.1678-7757http://hdl.handle.net/11449/13084110.1590/S1678-77572003000100012S1678-77572003000100012S1678-77572003000100012.pdf51303771443153659234456003563666214093420000-0002-1074-5319PubMedreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporJournal Of Applied Oral Science : Revista Fob1.7090,645info:eu-repo/semantics/openAccess2023-11-24T06:18:40Zoai:repositorio.unesp.br:11449/130841Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-24T06:18:40Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Avaliação da tenacidade à fratura de diferentes sistemas cerâmicos Relative fracture toughness of differents dental ceramics |
title |
Avaliação da tenacidade à fratura de diferentes sistemas cerâmicos |
spellingShingle |
Avaliação da tenacidade à fratura de diferentes sistemas cerâmicos Pagani, Clovis [UNESP] Dental ceramics Fracture toughness and Indentation method Cerâmicas odontológicas Tenacidade à fratura Método da indentação |
title_short |
Avaliação da tenacidade à fratura de diferentes sistemas cerâmicos |
title_full |
Avaliação da tenacidade à fratura de diferentes sistemas cerâmicos |
title_fullStr |
Avaliação da tenacidade à fratura de diferentes sistemas cerâmicos |
title_full_unstemmed |
Avaliação da tenacidade à fratura de diferentes sistemas cerâmicos |
title_sort |
Avaliação da tenacidade à fratura de diferentes sistemas cerâmicos |
author |
Pagani, Clovis [UNESP] |
author_facet |
Pagani, Clovis [UNESP] Miranda, Carolina Baptista Bottino, Marco Cícero |
author_role |
author |
author2 |
Miranda, Carolina Baptista Bottino, Marco Cícero |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Pagani, Clovis [UNESP] Miranda, Carolina Baptista Bottino, Marco Cícero |
dc.subject.por.fl_str_mv |
Dental ceramics Fracture toughness and Indentation method Cerâmicas odontológicas Tenacidade à fratura Método da indentação |
topic |
Dental ceramics Fracture toughness and Indentation method Cerâmicas odontológicas Tenacidade à fratura Método da indentação |
description |
Although ceramics present high compressive strength, they are brittle materials due to their low tensile strength so they have lower capacity to absorb shocks. This study evaluated the fracture toughness of different ceramic systems, which refers to the ability of a friable material to absorb defformation energy. Three ceramic systems were investigated. Ten cylindrical samples (5,0mm x 3,0mm), were obtained from each ceramic material as follows: G1- 10 samples of Vitadur Alpha (Vita-Zahnfabrik); G2- 10 samples of IPS Empress2 (Ivoclar-Vivadent); G3- 10 samples of In-Ceram Alumina (Vita-Zahnfabrik). Fracture toughness values were collected upon indentation tests that were performed under a heavy load. A microhardness tester (Digital Microhardness Tester FM) utilized a 500gf load cell during 10seconds to perform four impressions on each sample. Statistically significant results were observed (ANOVA and Kruskal-Wallis tests). In-Ceram Alumina presented the highest median toughness values (2,96N/m3/2), followed by Vitadur Alpha (2,08N/m3/2) and IPS Empress2 (1,05N/m3/2). It may be concluded that different ceramic systems present distinct fracture toughness values, thus In-Ceram is capable of absorbing superior stress when compared to Vitadur Alpha and IPS Empress2. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003 2015-12-07T15:29:42Z 2015-12-07T15:29:42Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S1678-77572003000100012 Journal Of Applied Oral Science : Revista Fob, v. 11, n. 1, p. 69-75, 2003. 1678-7757 http://hdl.handle.net/11449/130841 10.1590/S1678-77572003000100012 S1678-77572003000100012 S1678-77572003000100012.pdf 5130377144315365 9234456003563666 21409342 0000-0002-1074-5319 |
url |
http://dx.doi.org/10.1590/S1678-77572003000100012 http://hdl.handle.net/11449/130841 |
identifier_str_mv |
Journal Of Applied Oral Science : Revista Fob, v. 11, n. 1, p. 69-75, 2003. 1678-7757 10.1590/S1678-77572003000100012 S1678-77572003000100012 S1678-77572003000100012.pdf 5130377144315365 9234456003563666 21409342 0000-0002-1074-5319 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Journal Of Applied Oral Science : Revista Fob 1.709 0,645 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
69-75 application/pdf |
dc.publisher.none.fl_str_mv |
Journal Of Applied Oral Science : Revista Fob |
publisher.none.fl_str_mv |
Journal Of Applied Oral Science : Revista Fob |
dc.source.none.fl_str_mv |
PubMed reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1797789807939682304 |