Microanálise de superfície e caracterização química de cimentos endodônticos
Ano de defesa: | 2013 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Goiás
|
Programa de Pós-Graduação: |
Programa de Pós-graduação em Odontologia (FO)
|
Departamento: |
Faculdade de Odontologia - FO (RG)
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.bc.ufg.br/tede/handle/tede/8569 |
Resumo: | Purpose: to assess the surface and evaluate the chemical composition of root canal filling materials by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). Methods: eighteen polyethylene standard tubes were filled with the tested materials: Sealapex®, Sealer 26®, MTA Fillapex®, Pulp Canal Sealer®, Endofill® and AH Plus®. After 48 hours at 37°C and 95% relative humidity, the samples were surface-sputtered with gold, led to SEM and the images analyzed at 5,000X magnification. Then, the elements distribution and chemical composition were determined by EDX. The results were evaluated qualitatively (SEM images and elements distribution maps) and quantitatively (weight percentage). Results: the surface analysis revealed that the sealers presented different regularities, with an uniform distribution of elements, with particles of similar sizes and variable shapes in EDX microanalysis. Calcium oxide and hydroxide based sealers (Sealapex® and Sealer 26®) presented calcium peaks of 53.58wt.% and 65.00wt.%, respectively. MTA Fillapex® presented 30.58wt.% of calcium and high amounts of silicon (31.02 weight%) and bismuth (27.38 weight%). Zinc oxide and eugenol based sealers, Pulp Canal Sealer® and Endofill®, showed zinc quantities of 67.74wt% and 63.16wt.%, respectively. AH Plus® had higher amount of zirconium (64.24wt.%). The materials presented elements incompatible with the composition described by the manufacturer. Conclusions: the root canal sealers’ surfaces showed different. The elements presented uniform distribution, with particles of similar sizes and variable shapes. Chemical elements were found in the root canal sealers not described by the manufacturers. |
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Estrela, Carloshttp://lattes.cnpq.br/3611967334176683Alencar, Ana Helena Gonçalves dehttp://lattes.cnpq.br/2039898015468283Estrela, CarlosAlencar, Ana Helena Gonçalves deVeloso, Heloísa Helena PinhoGuedes, Orlando Aguirrehttp://lattes.cnpq.br/0971189665549648Sampaio, Felipe Cavalcanti2018-06-12T12:21:36Z2013-01-15SAMPAIO, F. C. Microanálise de superfície e caracterização química de cimentos endodônticos. 2013. 71 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2013.http://repositorio.bc.ufg.br/tede/handle/tede/8569Purpose: to assess the surface and evaluate the chemical composition of root canal filling materials by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). Methods: eighteen polyethylene standard tubes were filled with the tested materials: Sealapex®, Sealer 26®, MTA Fillapex®, Pulp Canal Sealer®, Endofill® and AH Plus®. After 48 hours at 37°C and 95% relative humidity, the samples were surface-sputtered with gold, led to SEM and the images analyzed at 5,000X magnification. Then, the elements distribution and chemical composition were determined by EDX. The results were evaluated qualitatively (SEM images and elements distribution maps) and quantitatively (weight percentage). Results: the surface analysis revealed that the sealers presented different regularities, with an uniform distribution of elements, with particles of similar sizes and variable shapes in EDX microanalysis. Calcium oxide and hydroxide based sealers (Sealapex® and Sealer 26®) presented calcium peaks of 53.58wt.% and 65.00wt.%, respectively. MTA Fillapex® presented 30.58wt.% of calcium and high amounts of silicon (31.02 weight%) and bismuth (27.38 weight%). Zinc oxide and eugenol based sealers, Pulp Canal Sealer® and Endofill®, showed zinc quantities of 67.74wt% and 63.16wt.%, respectively. AH Plus® had higher amount of zirconium (64.24wt.%). The materials presented elements incompatible with the composition described by the manufacturer. Conclusions: the root canal sealers’ surfaces showed different. The elements presented uniform distribution, with particles of similar sizes and variable shapes. Chemical elements were found in the root canal sealers not described by the manufacturers.Objetivo: analisar a superfície e avaliar a composição química de materiais obturadores do canal radicular por meio de microscopia eletrônica de varredura (MEV) e espectroscopia de dispersão de raios-X (EDX). Material e métodos: dezoito tubos de polietileno padronizados foram preenchidos com os materiais avaliados (n=3): Sealapex®, Sealer 26®, MTA Fillapex®, Pulp Canal Sealer®, Endofill® e AH Plus®. Após 48 horas a 37°C e umidade relativa de 95%, as amostras foram metalizadas com ouro, conduzidas ao MEV e as imagens da superfície analisadas em um aumento de 5.000X. A seguir, a distribuição dos elementos e composição química foram determinadas por meio de EDX. Os resultados foram avaliados qualitativamente (imagens do MEV e mapas de distribuição de elementos) e quantitativamente (porcentagem em peso). Resultados: a análise da superfície revelou que os cimentos apresentaram diferentes regularidades em imagens por MEV. As partículas apresentaram-se com distribuição uniforme dos elementos, com tamanhos similares e formas variáveis em microanálises por EDX. Os cimentos à base de óxido ou hidróxido de cálcio (Sealapex® e Sealer 26®) apresentaram quantidades de cálcio de 53,58%p (porcentagem de peso atômico) e 65,00%p, respectivamente, em microanálises por EDX. O cimento MTA Fillapex® apresentou 30,58%p de cálcio e elevadas quantidades de silício (31,02%p) e bismuto (27,38%p). Os cimentos contendo óxido de zinco e eugenol, Pulp Canal Sealer® e Endofill®, apresentaram zinco em quantidades de 67,74%p e 63,16%p, respectivamente. O AH Plus® apresentou maior quantidade de zircônia (64,24%p). Foram encontrados elementos não compatíveis com a composição descrita pelo fabricante. Conclusões: as superfícies dos cimentos endodônticos mostraram diferentes regularidades. As partículas apresentaram distribuição uniforme, com tamanhos similares, porém com formas variadas. Foram encontrados nos cimentos endodônticos elementos químicos que não foram descritos pelos fabricantes.Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2018-06-12T11:22:07Z No. of bitstreams: 2 Dissertação - Felipe Cavalcanti Sampaio - 2013.pdf: 1683727 bytes, checksum: 6cab873178ad2e097fe434f4aa8fca34 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-06-12T12:21:36Z (GMT) No. of bitstreams: 2 Dissertação - Felipe Cavalcanti Sampaio - 2013.pdf: 1683727 bytes, checksum: 6cab873178ad2e097fe434f4aa8fca34 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2018-06-12T12:21:36Z (GMT). No. of bitstreams: 2 Dissertação - Felipe Cavalcanti Sampaio - 2013.pdf: 1683727 bytes, checksum: 6cab873178ad2e097fe434f4aa8fca34 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2013-01-15Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade Federal de GoiásPrograma de Pós-graduação em Odontologia (FO)UFGBrasilFaculdade de Odontologia - FO (RG)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessMicroscopia eletrônica de varreduraEspectroscopia de dispersão de raios-XPropriedades químicasMateriais obturadoresEnergy-dispersive X-ray analysisScanning electron microscopyChemical propertiesRoot canal filling materialsODONTOLOGIA::ENDODONTIAMicroanálise de superfície e caracterização química de cimentos endodônticosSurface microanalysis and chemical characterization of endodontic sealersinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis-2325576619034292269600600600600-556915458157511369131159250545233393042075167498588264571reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGLICENSElicense.txtlicense.txttext/plain; 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dc.title.eng.fl_str_mv |
Microanálise de superfície e caracterização química de cimentos endodônticos |
dc.title.alternative.eng.fl_str_mv |
Surface microanalysis and chemical characterization of endodontic sealers |
title |
Microanálise de superfície e caracterização química de cimentos endodônticos |
spellingShingle |
Microanálise de superfície e caracterização química de cimentos endodônticos Sampaio, Felipe Cavalcanti Microscopia eletrônica de varredura Espectroscopia de dispersão de raios-X Propriedades químicas Materiais obturadores Energy-dispersive X-ray analysis Scanning electron microscopy Chemical properties Root canal filling materials ODONTOLOGIA::ENDODONTIA |
title_short |
Microanálise de superfície e caracterização química de cimentos endodônticos |
title_full |
Microanálise de superfície e caracterização química de cimentos endodônticos |
title_fullStr |
Microanálise de superfície e caracterização química de cimentos endodônticos |
title_full_unstemmed |
Microanálise de superfície e caracterização química de cimentos endodônticos |
title_sort |
Microanálise de superfície e caracterização química de cimentos endodônticos |
author |
Sampaio, Felipe Cavalcanti |
author_facet |
Sampaio, Felipe Cavalcanti |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Estrela, Carlos |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/3611967334176683 |
dc.contributor.advisor-co1.fl_str_mv |
Alencar, Ana Helena Gonçalves de |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/2039898015468283 |
dc.contributor.referee1.fl_str_mv |
Estrela, Carlos |
dc.contributor.referee2.fl_str_mv |
Alencar, Ana Helena Gonçalves de |
dc.contributor.referee3.fl_str_mv |
Veloso, Heloísa Helena Pinho |
dc.contributor.referee4.fl_str_mv |
Guedes, Orlando Aguirre |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0971189665549648 |
dc.contributor.author.fl_str_mv |
Sampaio, Felipe Cavalcanti |
contributor_str_mv |
Estrela, Carlos Alencar, Ana Helena Gonçalves de Estrela, Carlos Alencar, Ana Helena Gonçalves de Veloso, Heloísa Helena Pinho Guedes, Orlando Aguirre |
dc.subject.por.fl_str_mv |
Microscopia eletrônica de varredura Espectroscopia de dispersão de raios-X Propriedades químicas Materiais obturadores |
topic |
Microscopia eletrônica de varredura Espectroscopia de dispersão de raios-X Propriedades químicas Materiais obturadores Energy-dispersive X-ray analysis Scanning electron microscopy Chemical properties Root canal filling materials ODONTOLOGIA::ENDODONTIA |
dc.subject.eng.fl_str_mv |
Energy-dispersive X-ray analysis Scanning electron microscopy Chemical properties Root canal filling materials |
dc.subject.cnpq.fl_str_mv |
ODONTOLOGIA::ENDODONTIA |
description |
Purpose: to assess the surface and evaluate the chemical composition of root canal filling materials by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). Methods: eighteen polyethylene standard tubes were filled with the tested materials: Sealapex®, Sealer 26®, MTA Fillapex®, Pulp Canal Sealer®, Endofill® and AH Plus®. After 48 hours at 37°C and 95% relative humidity, the samples were surface-sputtered with gold, led to SEM and the images analyzed at 5,000X magnification. Then, the elements distribution and chemical composition were determined by EDX. The results were evaluated qualitatively (SEM images and elements distribution maps) and quantitatively (weight percentage). Results: the surface analysis revealed that the sealers presented different regularities, with an uniform distribution of elements, with particles of similar sizes and variable shapes in EDX microanalysis. Calcium oxide and hydroxide based sealers (Sealapex® and Sealer 26®) presented calcium peaks of 53.58wt.% and 65.00wt.%, respectively. MTA Fillapex® presented 30.58wt.% of calcium and high amounts of silicon (31.02 weight%) and bismuth (27.38 weight%). Zinc oxide and eugenol based sealers, Pulp Canal Sealer® and Endofill®, showed zinc quantities of 67.74wt% and 63.16wt.%, respectively. AH Plus® had higher amount of zirconium (64.24wt.%). The materials presented elements incompatible with the composition described by the manufacturer. Conclusions: the root canal sealers’ surfaces showed different. The elements presented uniform distribution, with particles of similar sizes and variable shapes. Chemical elements were found in the root canal sealers not described by the manufacturers. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-01-15 |
dc.date.accessioned.fl_str_mv |
2018-06-12T12:21:36Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SAMPAIO, F. C. Microanálise de superfície e caracterização química de cimentos endodônticos. 2013. 71 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2013. |
dc.identifier.uri.fl_str_mv |
http://repositorio.bc.ufg.br/tede/handle/tede/8569 |
identifier_str_mv |
SAMPAIO, F. C. Microanálise de superfície e caracterização química de cimentos endodônticos. 2013. 71 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2013. |
url |
http://repositorio.bc.ufg.br/tede/handle/tede/8569 |
dc.language.iso.fl_str_mv |
por |
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por |
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dc.relation.confidence.fl_str_mv |
600 600 600 600 |
dc.relation.department.fl_str_mv |
-5569154581575113691 |
dc.relation.cnpq.fl_str_mv |
3115925054523339304 |
dc.relation.sponsorship.fl_str_mv |
2075167498588264571 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
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dc.publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.publisher.program.fl_str_mv |
Programa de Pós-graduação em Odontologia (FO) |
dc.publisher.initials.fl_str_mv |
UFG |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Faculdade de Odontologia - FO (RG) |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFG instname:Universidade Federal de Goiás (UFG) instacron:UFG |
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tasesdissertacoes.bc@ufg.br |
_version_ |
1798045097311338496 |