Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFG |
Texto Completo: | http://repositorio.bc.ufg.br/tede/handle/tede/3625 |
Resumo: | The aim of this study was to analyze the stress distribution and fracture resistance of personalized posts made of an experimental composite, created by mixing short (3 mm) glass fiber with methacrylate matrix and filler particles and also, to compare personalized post to industrialized and anatomic ones. Four FEA models were created according to the restorative techniques: (FG) teeth restored with industrialized fiber post; (FG+RC) teeth restored with anatomic fiber post reline with resin; (FG+EXP) teeth restored with anatomic fiber post reline with experimental composite; (EXP) teeth restored with personalized post made of experimental composite. σvM and σmax criteria were determinated for stress assessment and specific regions were quantitative analyzed (post/dentin interface, core/dentin interface and post median longitudinal line for σvM, and buccal dentin and palatal dentin for σmax). Forty bovine incisors were divided in the same four groups (N=10). After being post-restored specimens were subjected to compressive-load (Intron 5965) at a 135-degree angle, applied by a 6mm-sphere tip. Failure modes was determined as it follows: (F1) core fracture; (F2) post fracture; (F3) root fracture; (F4) post/core/root set fracture. Stress mesurements and fracture resistance data were submitted to one-way ANOVA, followed by Tukey honestly significant difference test (α=.05). Failure mode were submitted to Kruskal Wallis (α=.05). EXP group showed more homogeneous stress distribution. Significant differences were found among the mean fracture resistance values (p=.000): FG+EXP(669.55±107.71)A; FG(620.72±59.29)A; EXP(506.54±27.07)B; FG+RC(452.75±81.63)B. No differences were found for failure mode (p=.595). The experimental composite significantly increases fracture resistance when used to reline industrialized fiber posts, and irrespenctive of its use, presented a lower σvM stress concentration in FEA models. |
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Fonseca, Rodrigo Borgeshttp://lattes.cnpq.br/8629552867290605Fonseca, Rodrigo BorgesBatata, Terezinha de Jesus EstevesSoares, Paulo Viníciushttp://lattes.cnpq.br/6634715421846733Kasuya, Amanda Vessoni Barbosa2014-11-18T11:14:15Z2014-02-07KASUYA, Amanda Vessoni Barbosa. Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas. 2014. 90 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2014.http://repositorio.bc.ufg.br/tede/handle/tede/3625The aim of this study was to analyze the stress distribution and fracture resistance of personalized posts made of an experimental composite, created by mixing short (3 mm) glass fiber with methacrylate matrix and filler particles and also, to compare personalized post to industrialized and anatomic ones. Four FEA models were created according to the restorative techniques: (FG) teeth restored with industrialized fiber post; (FG+RC) teeth restored with anatomic fiber post reline with resin; (FG+EXP) teeth restored with anatomic fiber post reline with experimental composite; (EXP) teeth restored with personalized post made of experimental composite. σvM and σmax criteria were determinated for stress assessment and specific regions were quantitative analyzed (post/dentin interface, core/dentin interface and post median longitudinal line for σvM, and buccal dentin and palatal dentin for σmax). Forty bovine incisors were divided in the same four groups (N=10). After being post-restored specimens were subjected to compressive-load (Intron 5965) at a 135-degree angle, applied by a 6mm-sphere tip. Failure modes was determined as it follows: (F1) core fracture; (F2) post fracture; (F3) root fracture; (F4) post/core/root set fracture. Stress mesurements and fracture resistance data were submitted to one-way ANOVA, followed by Tukey honestly significant difference test (α=.05). Failure mode were submitted to Kruskal Wallis (α=.05). EXP group showed more homogeneous stress distribution. Significant differences were found among the mean fracture resistance values (p=.000): FG+EXP(669.55±107.71)A; FG(620.72±59.29)A; EXP(506.54±27.07)B; FG+RC(452.75±81.63)B. No differences were found for failure mode (p=.595). The experimental composite significantly increases fracture resistance when used to reline industrialized fiber posts, and irrespenctive of its use, presented a lower σvM stress concentration in FEA models.O objetivo deste estudo foi analisar a distribuição de tensões e resistência à fratura de pinos experimentais criados pela mistura de fibra de vidro curtas (3mm) com uma matriz de metacrilato e partículas de carga e comparará-los com pinos de fibra de vidro industrializados e anatomizados. Quatro modelos elementos finitos (MEF) foram criados de acordo com as técnicas restauradoras: (FG) dentes restaurados com pino de fibra industrializado; (FG+RC) dentes restaurados com pino de fibra reembasados com resina ; (FG+EXP) dentes restaurados com pino de fibra anatômico reembasados com compósito experimental; (EXP) dentes restaurados com pinos personalizado feito com compósito experimental. Critérios de σvM e σmax foram determinados para a avaliação da distribuição de tensões e análises quantitativas foram feitas de regiões específicas (interface pino/dentina, interface núcleo/dentina, linha média longitudinal do pino para Já para o critério de máxima principal, duas regiões de cada modelos foram escolhidas para σvM; e dentina vestibular e dentina palatina para σmax). Quarenta incisivos bovinos foram divididos nos mesmos quatro grupos (N=10). Após restaurados com os pinos, os espécimes foram submetidos à carga de compressão em máquina de ensaios universais (Instron 5965) em um ângulo de 135 graus e velocidade constante de 0,5mm/min, aplicado na região palatina dos núcleos por uma ponta esférica de 6 mm de diâmetro. Os espécimes fraturados foram avaliados para determinar os padrões de fratura (F1- fratura do núcleo de preenchimento; F2- fratura do pino; F3-fratura da raiz; F4- fratura do conjunto pino/núcleo/raiz). Medições de tensão e dados de resistência à fratura foram submetidos ao teste ANOVA one-way , seguido pelo teste de Tukey-HSD (α=0,05). Os padrões de fratura foram submetidos ao teste de Kruskal Wallis (α=0,05). EXP demostrou distribuição de tensões mais homogênea. Foram encontradas diferenças significativas entre os valores médios de resistência da fratura (p=0,00): FG+EXP (669,55±107,71)A; FG (620,72±59,29)A; EXP (506,54±27,07)B; FG+RC (452,75±81,63)B. Não foram encontradas diferenças entre o padrão de fratura (p=0,595). O composto experimental aumentou significativamente a resistência à fratura quando usado para reembasar pinos de fibra de vidro industrializados, e independentemente da sua utilização, apresentou menor concentração de tensões σvM.Submitted by Cássia Santos (cassia.bcufg@gmail.com) on 2014-11-11T14:30:43Z No. of bitstreams: 2 Dissertacao Amanda Vessoni Barbosa Kasuya - 2014.pdf: 13166276 bytes, checksum: 2a9882d9dde3023a4b111a57f4aaf343 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2014-11-18T11:14:15Z (GMT) No. of bitstreams: 2 Dissertacao Amanda Vessoni Barbosa Kasuya - 2014.pdf: 13166276 bytes, checksum: 2a9882d9dde3023a4b111a57f4aaf343 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)Made available in DSpace on 2014-11-18T11:14:15Z (GMT). No. of bitstreams: 2 Dissertacao Amanda Vessoni Barbosa Kasuya - 2014.pdf: 13166276 bytes, checksum: 2a9882d9dde3023a4b111a57f4aaf343 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2014-02-07Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfhttp://repositorio.bc.ufg.br/tede/retrieve/12434/Dissertacao%20Amanda%20Vessoni%20Barbosa%20Kasuya%20-%202014.pdf.jpgporUniversidade 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/openAccessResistência à fraturaPadrão de fraturaMétodo de elementos finitosElement analysisGlass fiber postsistanceFracture refiniteFailure modeODONTOLOGIA::CLINICA ODONTOLOGICAInfluência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinasDevelopment of a fiber reinforced material for post relining: evaluation of stress distribution, fracture resistance and modes of fracture of restored rootsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis-2325576619034292269600600600600-5569154581575113691-18167404498984916572075167498588264571reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGORIGINALDissertacao Amanda Vessoni Barbosa Kasuya - 2014.pdfDissertacao Amanda Vessoni Barbosa Kasuya - 2014.pdfapplication/pdf13166276http://repositorio.bc.ufg.br/tede/bitstreams/9887e58e-ecee-4b42-8bad-fdc8b8509771/download2a9882d9dde3023a4b111a57f4aaf343MD55LICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas |
dc.title.alternative.eng.fl_str_mv |
Development of a fiber reinforced material for post relining: evaluation of stress distribution, fracture resistance and modes of fracture of restored roots |
title |
Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas |
spellingShingle |
Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas Kasuya, Amanda Vessoni Barbosa Resistência à fratura Padrão de fratura Método de elementos finitos Element analysis Glass fiber postsistance Fracture refinite Failure mode ODONTOLOGIA::CLINICA ODONTOLOGICA |
title_short |
Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas |
title_full |
Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas |
title_fullStr |
Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas |
title_full_unstemmed |
Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas |
title_sort |
Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas |
author |
Kasuya, Amanda Vessoni Barbosa |
author_facet |
Kasuya, Amanda Vessoni Barbosa |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Fonseca, Rodrigo Borges |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/8629552867290605 |
dc.contributor.referee1.fl_str_mv |
Fonseca, Rodrigo Borges |
dc.contributor.referee2.fl_str_mv |
Batata, Terezinha de Jesus Esteves |
dc.contributor.referee3.fl_str_mv |
Soares, Paulo Vinícius |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/6634715421846733 |
dc.contributor.author.fl_str_mv |
Kasuya, Amanda Vessoni Barbosa |
contributor_str_mv |
Fonseca, Rodrigo Borges Fonseca, Rodrigo Borges Batata, Terezinha de Jesus Esteves Soares, Paulo Vinícius |
dc.subject.por.fl_str_mv |
Resistência à fratura Padrão de fratura Método de elementos finitos Element analysis Glass fiber postsistance |
topic |
Resistência à fratura Padrão de fratura Método de elementos finitos Element analysis Glass fiber postsistance Fracture refinite Failure mode ODONTOLOGIA::CLINICA ODONTOLOGICA |
dc.subject.eng.fl_str_mv |
Fracture refinite Failure mode |
dc.subject.cnpq.fl_str_mv |
ODONTOLOGIA::CLINICA ODONTOLOGICA |
description |
The aim of this study was to analyze the stress distribution and fracture resistance of personalized posts made of an experimental composite, created by mixing short (3 mm) glass fiber with methacrylate matrix and filler particles and also, to compare personalized post to industrialized and anatomic ones. Four FEA models were created according to the restorative techniques: (FG) teeth restored with industrialized fiber post; (FG+RC) teeth restored with anatomic fiber post reline with resin; (FG+EXP) teeth restored with anatomic fiber post reline with experimental composite; (EXP) teeth restored with personalized post made of experimental composite. σvM and σmax criteria were determinated for stress assessment and specific regions were quantitative analyzed (post/dentin interface, core/dentin interface and post median longitudinal line for σvM, and buccal dentin and palatal dentin for σmax). Forty bovine incisors were divided in the same four groups (N=10). After being post-restored specimens were subjected to compressive-load (Intron 5965) at a 135-degree angle, applied by a 6mm-sphere tip. Failure modes was determined as it follows: (F1) core fracture; (F2) post fracture; (F3) root fracture; (F4) post/core/root set fracture. Stress mesurements and fracture resistance data were submitted to one-way ANOVA, followed by Tukey honestly significant difference test (α=.05). Failure mode were submitted to Kruskal Wallis (α=.05). EXP group showed more homogeneous stress distribution. Significant differences were found among the mean fracture resistance values (p=.000): FG+EXP(669.55±107.71)A; FG(620.72±59.29)A; EXP(506.54±27.07)B; FG+RC(452.75±81.63)B. No differences were found for failure mode (p=.595). The experimental composite significantly increases fracture resistance when used to reline industrialized fiber posts, and irrespenctive of its use, presented a lower σvM stress concentration in FEA models. |
publishDate |
2014 |
dc.date.accessioned.fl_str_mv |
2014-11-18T11:14:15Z |
dc.date.issued.fl_str_mv |
2014-02-07 |
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 |
KASUYA, Amanda Vessoni Barbosa. Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas. 2014. 90 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2014. |
dc.identifier.uri.fl_str_mv |
http://repositorio.bc.ufg.br/tede/handle/tede/3625 |
identifier_str_mv |
KASUYA, Amanda Vessoni Barbosa. Influência do material de reembasamento e do tipo de pino de fibra na distribuição de tensões e resistência à fratura em raízes bovinas. 2014. 90 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2014. |
url |
http://repositorio.bc.ufg.br/tede/handle/tede/3625 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.program.fl_str_mv |
-2325576619034292269 |
dc.relation.confidence.fl_str_mv |
600 600 600 600 |
dc.relation.department.fl_str_mv |
-5569154581575113691 |
dc.relation.cnpq.fl_str_mv |
-1816740449898491657 |
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 |
rights_invalid_str_mv |
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 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 |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Repositório Institucional da UFG |
collection |
Repositório Institucional da UFG |
bitstream.url.fl_str_mv |
http://repositorio.bc.ufg.br/tede/bitstreams/9887e58e-ecee-4b42-8bad-fdc8b8509771/download http://repositorio.bc.ufg.br/tede/bitstreams/34cb8313-3443-43fc-a9fa-4698485634b0/download http://repositorio.bc.ufg.br/tede/bitstreams/a8531cd9-2672-4338-a7eb-d0b9bfaccc6a/download http://repositorio.bc.ufg.br/tede/bitstreams/532e8bb3-f721-43cf-8460-334e6d7ff878/download http://repositorio.bc.ufg.br/tede/bitstreams/cec29b6c-b155-4785-a855-3b8f59f66980/download http://repositorio.bc.ufg.br/tede/bitstreams/7e618ac5-fc85-43e3-8bfe-8f04f1c4bb46/download http://repositorio.bc.ufg.br/tede/bitstreams/a4d506de-f5a4-4de8-b633-721949161455/download |
bitstream.checksum.fl_str_mv |
2a9882d9dde3023a4b111a57f4aaf343 bd3efa91386c1718a7f26a329fdcb468 4afdbb8c545fd630ea7db775da747b2f 1e0094e9d8adcf16b18effef4ce7ed83 9da0b6dfac957114c6a7714714b86306 eba41384c2408f7de80008f7ba59a4fe 132cd9358bec6751f45a6df4a2e93ba2 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFG - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
tasesdissertacoes.bc@ufg.br |
_version_ |
1798044431960506368 |