Efeito de cimentos endodônticos na resistência adesiva de pinos de fibra e no grau de conversão de dois cimentos resinosos
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/13575 |
Resumo: | Restoring dental function after partial loss of the coronary structure depends mainly of post retainer adhesive strength. However, several factors may affect the adhesion between the root dentin and the radicular post used including the endodontic sealers used for root canal obturation during endodontic treatment. Therefore, the objective of this study is to evaluate the effect of two endodontic sealers on push-out bond strength between fibreglass posts and root canal wall after different storage times and verify the influence of the endodontic sealers on the degree of conversion of resin cements. For this study, 180 bovine teeth were endodontically treated using two endodontic sealers, eugenol-based (Endofill) or epoxy resin-based (AH Plus). Subsequently, the specimens were stored in 100% relative humidity at 37 °C for 24 h, 6 or 12 months. After the respective storages times, the root canals were prepared for fibreglass post cementation using two resins cements, RelyX U200 or Multilink Automix. The push-out test and the analysis of failures were performed. For the degree of conversion analysis with a Raman microscope. The samples were prepared using only resin cement or resin cement and endodontic sealer. Finally, the push-out data were subjected to statistical analysis and the percentages of degree of conversion were calculated. The AH Plus sealer obtained the highest values of push out bond strength at 24 h and 6 months. There was no difference between the values of AH Plus and Endofill sealer at time 1 year (p < 0.05). Moreover, the degree of conversion was affected by the endodontic sealers used. Therefore, the use of eugenol-based sealer is not recommended because it affects the push-out strength of fibreglass posts. |
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Efeito de cimentos endodônticos na resistência adesiva de pinos de fibra e no grau de conversão de dois cimentos resinososEffect of endodontic sealers on the bond strength of fibreglass posts and the degree of conversion of two resin cementsCimentaçãoCimentos endodônticosEugenolGrau de conversãoPinos de fibraPush-outDegree of conversionEndodontic sealerEugenolFibreglass postLutingPush-out bond strength testCNPQ::CIENCIAS DA SAUDE::ODONTOLOGIARestoring dental function after partial loss of the coronary structure depends mainly of post retainer adhesive strength. However, several factors may affect the adhesion between the root dentin and the radicular post used including the endodontic sealers used for root canal obturation during endodontic treatment. Therefore, the objective of this study is to evaluate the effect of two endodontic sealers on push-out bond strength between fibreglass posts and root canal wall after different storage times and verify the influence of the endodontic sealers on the degree of conversion of resin cements. For this study, 180 bovine teeth were endodontically treated using two endodontic sealers, eugenol-based (Endofill) or epoxy resin-based (AH Plus). Subsequently, the specimens were stored in 100% relative humidity at 37 °C for 24 h, 6 or 12 months. After the respective storages times, the root canals were prepared for fibreglass post cementation using two resins cements, RelyX U200 or Multilink Automix. The push-out test and the analysis of failures were performed. For the degree of conversion analysis with a Raman microscope. The samples were prepared using only resin cement or resin cement and endodontic sealer. Finally, the push-out data were subjected to statistical analysis and the percentages of degree of conversion were calculated. The AH Plus sealer obtained the highest values of push out bond strength at 24 h and 6 months. There was no difference between the values of AH Plus and Endofill sealer at time 1 year (p < 0.05). Moreover, the degree of conversion was affected by the endodontic sealers used. Therefore, the use of eugenol-based sealer is not recommended because it affects the push-out strength of fibreglass posts.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESO restabelecimento da função dentária após a perda da porção coronária depende, em grande parte, da resistência adesiva dos pinos intrarradiculares. Entretanto, vários fatores podem afetar a adesão entre a dentina radicular e o retentor intrarradicular utilizado, um deles é o cimento utilizado para obturação do canal radicular na endodontia. Em vista disso, o objetivo desse estudo é avaliar o efeito de dois cimentos endodônticos em diferentes tempos de armazenamento na resistência adesiva entre pinos de fibra e as paredes do canal radicular, e verificar a influencia de cimentos endodônticos no grau de conversão dos cimentos resinosos. Para a realização do estudo, 180 dentes bovinos foram tratados endodonticamente utilizando dois cimentos endodônticos, à base de eugenol (Endofill) ou à base de resina epóxica (AH Plus). A seguir, os espécimes foram armazenados em estufa a 37 °C nos tempos 24 h, 6 meses e 12 meses. Decorrido o tempo de armazenamento, os canais radiculares foram preparados para a cimentação do pino de fibra utilizando dois cimentos resinosos, RelyX U200 ou Multilink Automix. O teste de push-out e a análise das falhas foram realizados. Para a análise do grau de conversão foi utilizado o microscópio Raman. As amostras foram preparadas utilizando somente cimento resinoso ou cimento resinoso e cimento endodôntico. Finalmente, os dados do teste de push-out foram submetidos à análise estatística e as porcentagens do teste de grau de conversão foram calculadas. O cimento AH Plus obteve os maiores valores de push-out nos tempos 24 h e 6 meses. Não teve diferença significativa entre os cimentos AH Plus e Endofill após 12 meses (p < 0,05). Além disso, o grau de conversão foi afetado pelo cimento endodôntico à base de eugenol. Portanto, o uso de cimentos endodônticos à base de eugenol não é recomendado, pois afeta a resistência adesiva dos cimentos resinosos.Universidade Federal de Santa MariaBrasilOdontologiaUFSMPrograma de Pós-Graduação em Ciências OdontológicasCentro de Ciências da SaúdeKaizer, Osvaldo Bazzanhttp://lattes.cnpq.br/0296170463642286Skupien, Jovito Adielhttp://lattes.cnpq.br/1391921073345927Morgental, Renata Dornelleshttp://lattes.cnpq.br/3833226179501044Bohrer, Thaís Camponogara2018-06-27T14:49:04Z2018-06-27T14:49:04Z2017-06-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://repositorio.ufsm.br/handle/1/13575porAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2022-01-19T11:21:42Zoai:repositorio.ufsm.br:1/13575Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2022-01-19T11:21:42Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Efeito de cimentos endodônticos na resistência adesiva de pinos de fibra e no grau de conversão de dois cimentos resinosos Effect of endodontic sealers on the bond strength of fibreglass posts and the degree of conversion of two resin cements |
title |
Efeito de cimentos endodônticos na resistência adesiva de pinos de fibra e no grau de conversão de dois cimentos resinosos |
spellingShingle |
Efeito de cimentos endodônticos na resistência adesiva de pinos de fibra e no grau de conversão de dois cimentos resinosos Bohrer, Thaís Camponogara Cimentação Cimentos endodônticos Eugenol Grau de conversão Pinos de fibra Push-out Degree of conversion Endodontic sealer Eugenol Fibreglass post Luting Push-out bond strength test CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA |
title_short |
Efeito de cimentos endodônticos na resistência adesiva de pinos de fibra e no grau de conversão de dois cimentos resinosos |
title_full |
Efeito de cimentos endodônticos na resistência adesiva de pinos de fibra e no grau de conversão de dois cimentos resinosos |
title_fullStr |
Efeito de cimentos endodônticos na resistência adesiva de pinos de fibra e no grau de conversão de dois cimentos resinosos |
title_full_unstemmed |
Efeito de cimentos endodônticos na resistência adesiva de pinos de fibra e no grau de conversão de dois cimentos resinosos |
title_sort |
Efeito de cimentos endodônticos na resistência adesiva de pinos de fibra e no grau de conversão de dois cimentos resinosos |
author |
Bohrer, Thaís Camponogara |
author_facet |
Bohrer, Thaís Camponogara |
author_role |
author |
dc.contributor.none.fl_str_mv |
Kaizer, Osvaldo Bazzan http://lattes.cnpq.br/0296170463642286 Skupien, Jovito Adiel http://lattes.cnpq.br/1391921073345927 Morgental, Renata Dornelles http://lattes.cnpq.br/3833226179501044 |
dc.contributor.author.fl_str_mv |
Bohrer, Thaís Camponogara |
dc.subject.por.fl_str_mv |
Cimentação Cimentos endodônticos Eugenol Grau de conversão Pinos de fibra Push-out Degree of conversion Endodontic sealer Eugenol Fibreglass post Luting Push-out bond strength test CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA |
topic |
Cimentação Cimentos endodônticos Eugenol Grau de conversão Pinos de fibra Push-out Degree of conversion Endodontic sealer Eugenol Fibreglass post Luting Push-out bond strength test CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA |
description |
Restoring dental function after partial loss of the coronary structure depends mainly of post retainer adhesive strength. However, several factors may affect the adhesion between the root dentin and the radicular post used including the endodontic sealers used for root canal obturation during endodontic treatment. Therefore, the objective of this study is to evaluate the effect of two endodontic sealers on push-out bond strength between fibreglass posts and root canal wall after different storage times and verify the influence of the endodontic sealers on the degree of conversion of resin cements. For this study, 180 bovine teeth were endodontically treated using two endodontic sealers, eugenol-based (Endofill) or epoxy resin-based (AH Plus). Subsequently, the specimens were stored in 100% relative humidity at 37 °C for 24 h, 6 or 12 months. After the respective storages times, the root canals were prepared for fibreglass post cementation using two resins cements, RelyX U200 or Multilink Automix. The push-out test and the analysis of failures were performed. For the degree of conversion analysis with a Raman microscope. The samples were prepared using only resin cement or resin cement and endodontic sealer. Finally, the push-out data were subjected to statistical analysis and the percentages of degree of conversion were calculated. The AH Plus sealer obtained the highest values of push out bond strength at 24 h and 6 months. There was no difference between the values of AH Plus and Endofill sealer at time 1 year (p < 0.05). Moreover, the degree of conversion was affected by the endodontic sealers used. Therefore, the use of eugenol-based sealer is not recommended because it affects the push-out strength of fibreglass posts. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-30 2018-06-27T14:49:04Z 2018-06-27T14:49:04Z |
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.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/13575 |
url |
http://repositorio.ufsm.br/handle/1/13575 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Odontologia UFSM Programa de Pós-Graduação em Ciências Odontológicas Centro de Ciências da Saúde |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Odontologia UFSM Programa de Pós-Graduação em Ciências Odontológicas Centro de Ciências da Saúde |
dc.source.none.fl_str_mv |
reponame:Manancial - Repositório Digital da UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Manancial - Repositório Digital da UFSM |
collection |
Manancial - Repositório Digital da UFSM |
repository.name.fl_str_mv |
Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
_version_ |
1805922144103694336 |