Avalia??o do efeito da escova??o e polimento na libera??o de Bisfenol A em resinas compostas fotopolimeriz?veis
Ano de defesa: | 2022 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Pontif?cia Universidade Cat?lica do Rio Grande do Sul
|
Programa de Pós-Graduação: |
Programa de P?s-Gradua??o em Odontologia
|
Departamento: |
Escola de Ci?ncias Sa?de e da Vida
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | https://tede2.pucrs.br/tede2/handle/tede/10457 |
Resumo: | Dentistry has been undergoing constant changes in all parameters, whether in techniques or materials. The evolution of resin composites had a great highlight in the 50's, when it was possible to show to the world the enamel acid etching technique, improving the adhesion to the dental structure. In 1956, Bis-GMA was introduced, which improved the composite resins' properties, widening their indication. The evolutions of these materials have gone much further, changes promoted in the composition, mainly regarding the size and distribution of the load particles, have improved some properties of these materials. Today, in the dental products market, several types of resins, which differ in their composition, have emerged during this evolutionary process, each one having its indications and limitations. Composite resins are composed of a methacrylate-based resin matrix, a system of photoinitiators, and load particles treated with a silane bonding agent. Among this composite resin constitution, bisphenol A-Glycidyl methacrylate (Bis-GMA) is used because it has low volume shrinkage, good mechanical properties, low volatility and diffusion in tissues. These qualities make Bis-GMA one of the most widely used monomers in the production of dental composites. The overall objective of this study is to evaluate the effect of simulated brushing and polishing on the release of the Bis-GMA component present in light-cured composite resins used in dentistr. The resins Z350, Empress Direct, Forma, Natural Flow and Vittra were used. It was possible to identify that the release of Bisphenol A is associated with the removal of surface layers of resins. and the 3M and Empress Direct resins showed a greater release of BPA with the brushing time. Forma and Vittra resins decreased BPA release with longer brushing time. The DFL resin showed a difference in the release behavior of the different resins, showing no difference with shorter or longer brushing time. Bpa release related to finishing and polishing was higher for all resins in the finishing process than polishing. |
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Weber, Jo?o Batista Blessmannhttp://lattes.cnpq.br/9666061712277756Silva, Bruno Pereira da2022-09-13T19:17:14Z2022-03-29https://tede2.pucrs.br/tede2/handle/tede/10457Dentistry has been undergoing constant changes in all parameters, whether in techniques or materials. The evolution of resin composites had a great highlight in the 50's, when it was possible to show to the world the enamel acid etching technique, improving the adhesion to the dental structure. In 1956, Bis-GMA was introduced, which improved the composite resins' properties, widening their indication. The evolutions of these materials have gone much further, changes promoted in the composition, mainly regarding the size and distribution of the load particles, have improved some properties of these materials. Today, in the dental products market, several types of resins, which differ in their composition, have emerged during this evolutionary process, each one having its indications and limitations. Composite resins are composed of a methacrylate-based resin matrix, a system of photoinitiators, and load particles treated with a silane bonding agent. Among this composite resin constitution, bisphenol A-Glycidyl methacrylate (Bis-GMA) is used because it has low volume shrinkage, good mechanical properties, low volatility and diffusion in tissues. These qualities make Bis-GMA one of the most widely used monomers in the production of dental composites. The overall objective of this study is to evaluate the effect of simulated brushing and polishing on the release of the Bis-GMA component present in light-cured composite resins used in dentistr. The resins Z350, Empress Direct, Forma, Natural Flow and Vittra were used. It was possible to identify that the release of Bisphenol A is associated with the removal of surface layers of resins. and the 3M and Empress Direct resins showed a greater release of BPA with the brushing time. Forma and Vittra resins decreased BPA release with longer brushing time. The DFL resin showed a difference in the release behavior of the different resins, showing no difference with shorter or longer brushing time. Bpa release related to finishing and polishing was higher for all resins in the finishing process than polishing.A Odontologia vem sofrendo constantes mudan?as em todos par?metros, sejam eles de t?cnicas ou materiais. A evolu??o dos comp?sitos resinosos teve grande destaque na d?cada de 50, quando foi poss?vel mostrar ao mundo a t?cnica do condicionamento ?cido do esmalte, melhorando a ades?o ? estrutura dental. Em 1956, foi introduzido o Bis-GMA o qual melhorou as propriedades das resinas compostas, ampliando a sua indica??o. As evolu??es destes materiais foram bem mais al?m, altera??es promovidas na composi??o, principalmente em rela??o ao tamanho e distribui??o das part?culas de carga, melhoraram algumas propriedades desses materiais. Hoje, no mercado de produtos odontol?gicos, diversos tipos de resinas, que diferem em sua composi??o, surgiram durante esse processo evolutivo, cada uma tendo suas indica??es e limita??es. As resinas compostas s?o constitu?das por uma matriz de resina ? base de metacrilato, um sistema de fotoiniciadores e part?culas de carga tratadas com um agente de uni?o de silano. Dentre esta constitui??o da resina composta o bisfenol A-metacrilato de glicidilo (Bis-GMA) ? utilizado pelo motivo de apresentar uma baixa contra??o volum?trica, boas propriedades mec?nicas, baixa volatilidade e difus?o nos tecidos. Estas qualidades tornam o Bis-GMA um dos mon?meros mais usados na produ??o de comp?sitos dent?rios. O objetivo geral deste estudo foi avaliar o efeito da simula??o da escova??o e polimento na libera??o do componente Bisfenol A presente em resinas compostas fotopolimeriz?veis utilizadas na Odontologia. Foram utilizadas as resinas Z350, Empress Direct, Forma, Natural Flow e Vittra. Foi poss?vel identificar que a libera??o de Bisfenol A est? associada a remo??o de camadas superficiais das resinas. sendo que as resinas 3M e Empress Direct apresentaram uma libera??o de BPA maior com o tempo de escova??o. As resinas Forma e Vittra diminu?ram a libera??o de BPA com o maior tempo de escova??o. A resina DFL apresentou diferen?a no comportamento da libera??o das diferentes resinas, n?o apresentando diferen?a com menor ou maior tempo de escova??o. A libera??o de Bpa relacionada ao acabamento e polimento foi maior em todas as resinas no processo de acabamento do que polimento.Submitted by PPG Odontologia (odontologia-pg@pucrs.br) on 2022-09-02T13:35:56Z No. of bitstreams: 1 BRUNO_PEREIRA_DA_SILVA_DIS.pdf: 917250 bytes, checksum: bc3fb0206a0017c6f1cc40e4d3251c13 (MD5)Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2022-09-13T19:11:59Z (GMT) No. of bitstreams: 1 BRUNO_PEREIRA_DA_SILVA_DIS.pdf: 917250 bytes, checksum: bc3fb0206a0017c6f1cc40e4d3251c13 (MD5)Made available in DSpace on 2022-09-13T19:17:14Z (GMT). No. of bitstreams: 1 BRUNO_PEREIRA_DA_SILVA_DIS.pdf: 917250 bytes, checksum: bc3fb0206a0017c6f1cc40e4d3251c13 (MD5) Previous issue date: 2022-03-29Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPESapplication/pdfhttps://tede2.pucrs.br/tede2/retrieve/185407/DIS_BRUNO_PEREIRA_DA_SILVA_CONFIDENCIAL.pdf.jpgporPontif?cia Universidade Cat?lica do Rio Grande do SulPrograma de P?s-Gradua??o em OdontologiaPUCRSBrasilEscola de Ci?ncias Sa?de e da VidaBisfenol ACromatografia de Alta Efici?nciaMateriais Dent?riosDental MaterialsHigh Efficiency ChromatographyBisfenol ACIENCIAS DA SAUDE::ODONTOLOGIAAvalia??o do efeito da escova??o e polimento na libera??o de Bisfenol A em resinas compostas fotopolimeriz?veisinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisTrabalho ser? publicado como artigo ou livro60 meses13/09/2027-7411869720500764667500500600-20704984698792443493590462550136975366info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da PUC_RSinstname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSTHUMBNAILDIS_BRUNO_PEREIRA_DA_SILVA_CONFIDENCIAL.pdf.jpgDIS_BRUNO_PEREIRA_DA_SILVA_CONFIDENCIAL.pdf.jpgimage/jpeg4131https://tede2.pucrs.br/tede2/bitstream/tede/10457/4/DIS_BRUNO_PEREIRA_DA_SILVA_CONFIDENCIAL.pdf.jpgac65523fa128c7c4bc37d245992d3602MD54TEXTDIS_BRUNO_PEREIRA_DA_SILVA_CONFIDENCIAL.pdf.txtDIS_BRUNO_PEREIRA_DA_SILVA_CONFIDENCIAL.pdf.txttext/plain1942https://tede2.pucrs.br/tede2/bitstream/tede/10457/3/DIS_BRUNO_PEREIRA_DA_SILVA_CONFIDENCIAL.pdf.txt2266274a42b30fc494f4af952a92e76dMD53ORIGINALDIS_BRUNO_PEREIRA_DA_SILVA_CONFIDENCIAL.pdfDIS_BRUNO_PEREIRA_DA_SILVA_CONFIDENCIAL.pdfapplication/pdf372017https://tede2.pucrs.br/tede2/bitstream/tede/10457/2/DIS_BRUNO_PEREIRA_DA_SILVA_CONFIDENCIAL.pdfb941fe3101abbb8511c0d72b46d26531MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-8590https://tede2.pucrs.br/tede2/bitstream/tede/10457/1/license.txt220e11f2d3ba5354f917c7035aadef24MD51tede/104572022-09-13 20:00:20.526oai:tede2.pucrs.br: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Biblioteca Digital de Teses e Dissertaçõeshttp://tede2.pucrs.br/tede2/PRIhttps://tede2.pucrs.br/oai/requestbiblioteca.central@pucrs.br||opendoar:2022-09-13T23:00:20Biblioteca Digital de Teses e Dissertações da PUC_RS - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false |
dc.title.por.fl_str_mv |
Avalia??o do efeito da escova??o e polimento na libera??o de Bisfenol A em resinas compostas fotopolimeriz?veis |
title |
Avalia??o do efeito da escova??o e polimento na libera??o de Bisfenol A em resinas compostas fotopolimeriz?veis |
spellingShingle |
Avalia??o do efeito da escova??o e polimento na libera??o de Bisfenol A em resinas compostas fotopolimeriz?veis Silva, Bruno Pereira da Bisfenol A Cromatografia de Alta Efici?ncia Materiais Dent?rios Dental Materials High Efficiency Chromatography Bisfenol A CIENCIAS DA SAUDE::ODONTOLOGIA |
title_short |
Avalia??o do efeito da escova??o e polimento na libera??o de Bisfenol A em resinas compostas fotopolimeriz?veis |
title_full |
Avalia??o do efeito da escova??o e polimento na libera??o de Bisfenol A em resinas compostas fotopolimeriz?veis |
title_fullStr |
Avalia??o do efeito da escova??o e polimento na libera??o de Bisfenol A em resinas compostas fotopolimeriz?veis |
title_full_unstemmed |
Avalia??o do efeito da escova??o e polimento na libera??o de Bisfenol A em resinas compostas fotopolimeriz?veis |
title_sort |
Avalia??o do efeito da escova??o e polimento na libera??o de Bisfenol A em resinas compostas fotopolimeriz?veis |
author |
Silva, Bruno Pereira da |
author_facet |
Silva, Bruno Pereira da |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Weber, Jo?o Batista Blessmann |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9666061712277756 |
dc.contributor.author.fl_str_mv |
Silva, Bruno Pereira da |
contributor_str_mv |
Weber, Jo?o Batista Blessmann |
dc.subject.por.fl_str_mv |
Bisfenol A Cromatografia de Alta Efici?ncia Materiais Dent?rios |
topic |
Bisfenol A Cromatografia de Alta Efici?ncia Materiais Dent?rios Dental Materials High Efficiency Chromatography Bisfenol A CIENCIAS DA SAUDE::ODONTOLOGIA |
dc.subject.eng.fl_str_mv |
Dental Materials High Efficiency Chromatography Bisfenol A |
dc.subject.cnpq.fl_str_mv |
CIENCIAS DA SAUDE::ODONTOLOGIA |
description |
Dentistry has been undergoing constant changes in all parameters, whether in techniques or materials. The evolution of resin composites had a great highlight in the 50's, when it was possible to show to the world the enamel acid etching technique, improving the adhesion to the dental structure. In 1956, Bis-GMA was introduced, which improved the composite resins' properties, widening their indication. The evolutions of these materials have gone much further, changes promoted in the composition, mainly regarding the size and distribution of the load particles, have improved some properties of these materials. Today, in the dental products market, several types of resins, which differ in their composition, have emerged during this evolutionary process, each one having its indications and limitations. Composite resins are composed of a methacrylate-based resin matrix, a system of photoinitiators, and load particles treated with a silane bonding agent. Among this composite resin constitution, bisphenol A-Glycidyl methacrylate (Bis-GMA) is used because it has low volume shrinkage, good mechanical properties, low volatility and diffusion in tissues. These qualities make Bis-GMA one of the most widely used monomers in the production of dental composites. The overall objective of this study is to evaluate the effect of simulated brushing and polishing on the release of the Bis-GMA component present in light-cured composite resins used in dentistr. The resins Z350, Empress Direct, Forma, Natural Flow and Vittra were used. It was possible to identify that the release of Bisphenol A is associated with the removal of surface layers of resins. and the 3M and Empress Direct resins showed a greater release of BPA with the brushing time. Forma and Vittra resins decreased BPA release with longer brushing time. The DFL resin showed a difference in the release behavior of the different resins, showing no difference with shorter or longer brushing time. Bpa release related to finishing and polishing was higher for all resins in the finishing process than polishing. |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-09-13T19:17:14Z |
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2022-03-29 |
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https://tede2.pucrs.br/tede2/handle/tede/10457 |
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por |
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por |
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-7411869720500764667 |
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500 500 600 |
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3590462550136975366 |
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Pontif?cia Universidade Cat?lica do Rio Grande do Sul |
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Programa de P?s-Gradua??o em Odontologia |
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PUCRS |
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Brasil |
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Pontif?cia Universidade Cat?lica do Rio Grande do Sul |
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