Characterization of calcium oxide in root perforation sealer materials

Detalhes bibliográficos
Autor(a) principal: Estrela,Carlos
Data de Publicação: 2012
Outros Autores: Sousa-Neto,Manoel Damião, Guedes,Orlando Aguirre, Alencar,Ana Helena Gonçalves, Duarte,Marco Antonio Hungaro, Pécora,Jesus Djalma
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Dental Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402012000500012
Resumo: Root perforation represents an undesirable complication that may lead to an unfavorable prognosis. The aims of this study were to characterize and to compare the presence of calcium oxide (CaO) on the chemical composition of materials used for root perforation therapy: gray and white mineral trioxide aggregate (MTA) and Portland cement (PC), gray MTA+5%CaO and gray MTA+10%CaO. The last two materials were analyzed to evaluate the increase of CaO in the final sample. CaO alone was used as a standard. Eighteen polyethylene tubes with an internal diameter of 3 mm and 3 mm in length were prepared, filled and then transferred to a chamber with 95% relative humidity and a temperature of 37ºC. The chemical compounds (particularly CaO) and the main components were analyzed by energy-dispersive X-ray microanalysis (EDX). EDX revealed the following concentrations of CaO: gray MTA: 59.28%, white MTA: 63.09%; PC: 72.51%; gray MTA+5%CaO: 63.48% and gray MTA+10%CaO: 67.55%. The tested materials presented different concentrations of CaO. Even with an increase of 5 and 10% CaO in gray MTA, the CaO levels found in the MTA samples were lower than those found in PC.
id FUNORP-1_8a1316105014a8d332342fa2c5581cd2
oai_identifier_str oai:scielo:S0103-64402012000500012
network_acronym_str FUNORP-1
network_name_str Brazilian Dental Journal
repository_id_str
spelling Characterization of calcium oxide in root perforation sealer materialsMTAPortland cementcalcium oxidecalcium hydroxideroot perforationsRoot perforation represents an undesirable complication that may lead to an unfavorable prognosis. The aims of this study were to characterize and to compare the presence of calcium oxide (CaO) on the chemical composition of materials used for root perforation therapy: gray and white mineral trioxide aggregate (MTA) and Portland cement (PC), gray MTA+5%CaO and gray MTA+10%CaO. The last two materials were analyzed to evaluate the increase of CaO in the final sample. CaO alone was used as a standard. Eighteen polyethylene tubes with an internal diameter of 3 mm and 3 mm in length were prepared, filled and then transferred to a chamber with 95% relative humidity and a temperature of 37ºC. The chemical compounds (particularly CaO) and the main components were analyzed by energy-dispersive X-ray microanalysis (EDX). EDX revealed the following concentrations of CaO: gray MTA: 59.28%, white MTA: 63.09%; PC: 72.51%; gray MTA+5%CaO: 63.48% and gray MTA+10%CaO: 67.55%. The tested materials presented different concentrations of CaO. Even with an increase of 5 and 10% CaO in gray MTA, the CaO levels found in the MTA samples were lower than those found in PC.Fundação Odontológica de Ribeirão Preto2012-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402012000500012Brazilian Dental Journal v.23 n.5 2012reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/S0103-64402012000500012info:eu-repo/semantics/openAccessEstrela,CarlosSousa-Neto,Manoel DamiãoGuedes,Orlando AguirreAlencar,Ana Helena GonçalvesDuarte,Marco Antonio HungaroPécora,Jesus Djalmaeng2013-01-08T00:00:00Zoai:scielo:S0103-64402012000500012Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2013-01-08T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false
dc.title.none.fl_str_mv Characterization of calcium oxide in root perforation sealer materials
title Characterization of calcium oxide in root perforation sealer materials
spellingShingle Characterization of calcium oxide in root perforation sealer materials
Estrela,Carlos
MTA
Portland cement
calcium oxide
calcium hydroxide
root perforations
title_short Characterization of calcium oxide in root perforation sealer materials
title_full Characterization of calcium oxide in root perforation sealer materials
title_fullStr Characterization of calcium oxide in root perforation sealer materials
title_full_unstemmed Characterization of calcium oxide in root perforation sealer materials
title_sort Characterization of calcium oxide in root perforation sealer materials
author Estrela,Carlos
author_facet Estrela,Carlos
Sousa-Neto,Manoel Damião
Guedes,Orlando Aguirre
Alencar,Ana Helena Gonçalves
Duarte,Marco Antonio Hungaro
Pécora,Jesus Djalma
author_role author
author2 Sousa-Neto,Manoel Damião
Guedes,Orlando Aguirre
Alencar,Ana Helena Gonçalves
Duarte,Marco Antonio Hungaro
Pécora,Jesus Djalma
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Estrela,Carlos
Sousa-Neto,Manoel Damião
Guedes,Orlando Aguirre
Alencar,Ana Helena Gonçalves
Duarte,Marco Antonio Hungaro
Pécora,Jesus Djalma
dc.subject.por.fl_str_mv MTA
Portland cement
calcium oxide
calcium hydroxide
root perforations
topic MTA
Portland cement
calcium oxide
calcium hydroxide
root perforations
description Root perforation represents an undesirable complication that may lead to an unfavorable prognosis. The aims of this study were to characterize and to compare the presence of calcium oxide (CaO) on the chemical composition of materials used for root perforation therapy: gray and white mineral trioxide aggregate (MTA) and Portland cement (PC), gray MTA+5%CaO and gray MTA+10%CaO. The last two materials were analyzed to evaluate the increase of CaO in the final sample. CaO alone was used as a standard. Eighteen polyethylene tubes with an internal diameter of 3 mm and 3 mm in length were prepared, filled and then transferred to a chamber with 95% relative humidity and a temperature of 37ºC. The chemical compounds (particularly CaO) and the main components were analyzed by energy-dispersive X-ray microanalysis (EDX). EDX revealed the following concentrations of CaO: gray MTA: 59.28%, white MTA: 63.09%; PC: 72.51%; gray MTA+5%CaO: 63.48% and gray MTA+10%CaO: 67.55%. The tested materials presented different concentrations of CaO. Even with an increase of 5 and 10% CaO in gray MTA, the CaO levels found in the MTA samples were lower than those found in PC.
publishDate 2012
dc.date.none.fl_str_mv 2012-10-01
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=S0103-64402012000500012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402012000500012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-64402012000500012
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.23 n.5 2012
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
_version_ 1754204092257796096