Effect of different EGTA concentrations on dentin microhardness

Detalhes bibliográficos
Autor(a) principal: Cruz-Filho,Antonio Miranda da
Data de Publicação: 2002
Outros Autores: Paula,Eduardo Augusto de, Pécora,Jesus Djalma, Sousa-Neto,Manoel Damião de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Dental Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402002000300009
Resumo: The effect of 1%, 3% and 5% EGTA (ethylene glycol-bis-(b-amino-ethyl ether) N,N,N´,N´-tetra-acetic acid) on the microhardness of root dentin of the cervical third of human teeth was studied. Five newly extracted maxillary incisors were sectioned transversely at the cementoenamel junction, and the crowns were discarded. The roots were embedded in blocks of high-speed polymerized acrylic resin and cut transversely into 1-mm sections. The second section of the cervical third of the root of each tooth was sectioned and divided into four parts. Each part was placed on an acrylic disc that was used as a base for microhardness measurement. Fifty microliters of 1% EGTA, 3% EGTA, or 5% EGTA were applied to the dentin surface. Deionized and distilled water was used as control. Dentin microhardness was then measured with a load of 50 g for 15 s. Statistical analysis showed that the three concentrations of the chelating solution EGTA significantly reduced dentin microhardness when compared with water (ANOVA, p<0.01), and that there was a statistically significant difference among the three solutions (Tukey test, p<0.05).
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spelling Effect of different EGTA concentrations on dentin microhardnessdentin microhardnesschelating agentsEGTAThe effect of 1%, 3% and 5% EGTA (ethylene glycol-bis-(b-amino-ethyl ether) N,N,N´,N´-tetra-acetic acid) on the microhardness of root dentin of the cervical third of human teeth was studied. Five newly extracted maxillary incisors were sectioned transversely at the cementoenamel junction, and the crowns were discarded. The roots were embedded in blocks of high-speed polymerized acrylic resin and cut transversely into 1-mm sections. The second section of the cervical third of the root of each tooth was sectioned and divided into four parts. Each part was placed on an acrylic disc that was used as a base for microhardness measurement. Fifty microliters of 1% EGTA, 3% EGTA, or 5% EGTA were applied to the dentin surface. Deionized and distilled water was used as control. Dentin microhardness was then measured with a load of 50 g for 15 s. Statistical analysis showed that the three concentrations of the chelating solution EGTA significantly reduced dentin microhardness when compared with water (ANOVA, p<0.01), and that there was a statistically significant difference among the three solutions (Tukey test, p<0.05).Fundação Odontológica de Ribeirão Preto2002-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402002000300009Brazilian Dental Journal v.13 n.3 2002reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/S0103-64402002000300009info:eu-repo/semantics/openAccessCruz-Filho,Antonio Miranda daPaula,Eduardo Augusto dePécora,Jesus DjalmaSousa-Neto,Manoel Damião deeng2003-04-07T00:00:00Zoai:scielo:S0103-64402002000300009Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2003-04-07T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false
dc.title.none.fl_str_mv Effect of different EGTA concentrations on dentin microhardness
title Effect of different EGTA concentrations on dentin microhardness
spellingShingle Effect of different EGTA concentrations on dentin microhardness
Cruz-Filho,Antonio Miranda da
dentin microhardness
chelating agents
EGTA
title_short Effect of different EGTA concentrations on dentin microhardness
title_full Effect of different EGTA concentrations on dentin microhardness
title_fullStr Effect of different EGTA concentrations on dentin microhardness
title_full_unstemmed Effect of different EGTA concentrations on dentin microhardness
title_sort Effect of different EGTA concentrations on dentin microhardness
author Cruz-Filho,Antonio Miranda da
author_facet Cruz-Filho,Antonio Miranda da
Paula,Eduardo Augusto de
Pécora,Jesus Djalma
Sousa-Neto,Manoel Damião de
author_role author
author2 Paula,Eduardo Augusto de
Pécora,Jesus Djalma
Sousa-Neto,Manoel Damião de
author2_role author
author
author
dc.contributor.author.fl_str_mv Cruz-Filho,Antonio Miranda da
Paula,Eduardo Augusto de
Pécora,Jesus Djalma
Sousa-Neto,Manoel Damião de
dc.subject.por.fl_str_mv dentin microhardness
chelating agents
EGTA
topic dentin microhardness
chelating agents
EGTA
description The effect of 1%, 3% and 5% EGTA (ethylene glycol-bis-(b-amino-ethyl ether) N,N,N´,N´-tetra-acetic acid) on the microhardness of root dentin of the cervical third of human teeth was studied. Five newly extracted maxillary incisors were sectioned transversely at the cementoenamel junction, and the crowns were discarded. The roots were embedded in blocks of high-speed polymerized acrylic resin and cut transversely into 1-mm sections. The second section of the cervical third of the root of each tooth was sectioned and divided into four parts. Each part was placed on an acrylic disc that was used as a base for microhardness measurement. Fifty microliters of 1% EGTA, 3% EGTA, or 5% EGTA were applied to the dentin surface. Deionized and distilled water was used as control. Dentin microhardness was then measured with a load of 50 g for 15 s. Statistical analysis showed that the three concentrations of the chelating solution EGTA significantly reduced dentin microhardness when compared with water (ANOVA, p<0.01), and that there was a statistically significant difference among the three solutions (Tukey test, p<0.05).
publishDate 2002
dc.date.none.fl_str_mv 2002-01-01
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=S0103-64402002000300009
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402002000300009
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-64402002000300009
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 Fundação Odontológica de Ribeirão Preto
publisher.none.fl_str_mv Fundação Odontológica de Ribeirão Preto
dc.source.none.fl_str_mv Brazilian Dental Journal v.13 n.3 2002
reponame:Brazilian Dental Journal
instname:Fundação Odontológica de Ribeirão Preto (FUNORP)
instacron:FUNORP
instname_str Fundação Odontológica de Ribeirão Preto (FUNORP)
instacron_str FUNORP
institution FUNORP
reponame_str Brazilian Dental Journal
collection Brazilian Dental Journal
repository.name.fl_str_mv Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)
repository.mail.fl_str_mv bdj@forp.usp.br||sergio@fosjc.unesp.br
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