Titanium dioxide nanotubes as reinforcement of a selfadhesive resin cement in self-curing mode

Detalhes bibliográficos
Autor(a) principal: Pacheco, Leandro Edgar
Data de Publicação: 2019
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Biblioteca Digital de Teses e Dissertações da USP
Texto Completo: http://www.teses.usp.br/teses/disponiveis/25/25148/tde-25112019-210220/
Resumo: Objective: This study has analyzed bond strength to root dentine and to fiberglass posts, and the radiopacity of self-adhesive dual resin cement in addition of titanium dioxide nanotubes (nt-TiO2) in self-curing polymerization. Material and Methods: The self-adhesive resin cement (RelyX U200TM, 3M ESPE) was enhanced with different concentrations (0.3, 0.6, and 0.9% by weight) of nt-TiO2 and evaluated at only self-curing mode. To test the bond strength to root dentine and fiberglass posts was applied the push out bond strength test (PO). To analyze the radiopacity was follow the ISO standard (9917-2/2010). Data were statistically analyzed by one-way ANOVA test, followed by post hoc multiple comparisons Fishers test for PO and Tukeys test for RO (p<0.05). Results: Reinforced self-adhesive resin cement influenced the increase in values of PO, especially in the S06 group (0.6 wt%), which demonstrated a higher value of bond strength, mainly in the apical third. However, this analysis not demonstrated statistical difference between the groups with nt-TiO2 addition (S03, S06 and S09) and the control group (SCT). For radiopacity, the addition of nt-TiO2 may provide an increase in value, especially to the S09 group, which showed a higher value with statistical difference in comparison with SCT group. Conclusion: The addition of nt- TiO2 showed influence at behavior of the self-cure mode of the self-adhesive resin cement, and its use in other concentrations may be considered for future studies, since reinforced cement may prove better results in indirect restorative procedures.
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spelling Titanium dioxide nanotubes as reinforcement of a selfadhesive resin cement in self-curing modeNanotubos de dióxido de titânio como reforço de um cimento resinoso autoadesivo na fase de polimerização químicaCimentos dentáriosCimentos resinososDental cementsNanotubesNanotubosResin cementsTitânioTitaniumObjective: This study has analyzed bond strength to root dentine and to fiberglass posts, and the radiopacity of self-adhesive dual resin cement in addition of titanium dioxide nanotubes (nt-TiO2) in self-curing polymerization. Material and Methods: The self-adhesive resin cement (RelyX U200TM, 3M ESPE) was enhanced with different concentrations (0.3, 0.6, and 0.9% by weight) of nt-TiO2 and evaluated at only self-curing mode. To test the bond strength to root dentine and fiberglass posts was applied the push out bond strength test (PO). To analyze the radiopacity was follow the ISO standard (9917-2/2010). Data were statistically analyzed by one-way ANOVA test, followed by post hoc multiple comparisons Fishers test for PO and Tukeys test for RO (p<0.05). Results: Reinforced self-adhesive resin cement influenced the increase in values of PO, especially in the S06 group (0.6 wt%), which demonstrated a higher value of bond strength, mainly in the apical third. However, this analysis not demonstrated statistical difference between the groups with nt-TiO2 addition (S03, S06 and S09) and the control group (SCT). For radiopacity, the addition of nt-TiO2 may provide an increase in value, especially to the S09 group, which showed a higher value with statistical difference in comparison with SCT group. Conclusion: The addition of nt- TiO2 showed influence at behavior of the self-cure mode of the self-adhesive resin cement, and its use in other concentrations may be considered for future studies, since reinforced cement may prove better results in indirect restorative procedures.Objetivo: Este estudo analisou a resistência de união à dentina radicular e aos pinos de fibra de vidro, e a radiopacidade de um cimento resinoso dual autoadesivo com a adição de nanotubos de dióxido de titânio (nt-TiO2) na sua fase de polimerização química. Material e métodos: O cimento resinoso auto-adesivo (RelyX U200TM, 3M ESPE) foi reforçado com diferentes concentrações de nt-TiO2 (0,3, 0,6, and 0,9% em peso) e avaliado somente em seu modo de polimerização química. Para avaliar a resistência de união à dentina radicular e aos pinos de fibra de vidro foi aplicado o teste push out (PO). Para a análise da radiopacidade (RO) foi seguido o padrão ISO (9917- 2/2010). Os dados foram submetidos à análise estatística por ANOVA seguido de comparações múltiplas de Fisher para PO e Tukey para RO (p<0,05). Resultados: O cimento resinoso autoadesivo reforçado influenciou no aumento dos valores de PO, em especial no grupo S06 (0,6% em peso), o qual demonstrou um maior valor de resistência de união, principalmente no terço apical. Entretanto essa análise não apresentou diferença estatística entre os grupos com a adição de nt- TiO2 (S03, S06 e S09) e o grupo controle (SCT). Para radiopacidade, a adição de nt- TiO2 promoveu um aumento em valores, especialmente para S09, que mostrou um maior valor com diferença estatística em comparação com SCT. Conclusão: A adição de nt-TiO2 mostrou influência no comportamento do modo de polimerização química do cimento resinoso autoadesivo, e seu uso em outras concentrações pode ser considerado para futuros estudos, já que o cimento reforçado pode revelar resultados superiores em procedimentos restauradores indiretos.Biblioteca Digitais de Teses e Dissertações da USPFrancisconi, Paulo Afonso SilveiraPacheco, Leandro Edgar2019-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://www.teses.usp.br/teses/disponiveis/25/25148/tde-25112019-210220/reponame:Biblioteca Digital de Teses e Dissertações da USPinstname:Universidade de São Paulo (USP)instacron:USPLiberar o conteúdo para acesso público.info:eu-repo/semantics/openAccesseng2022-05-12T12:59:42Zoai:teses.usp.br:tde-25112019-210220Biblioteca Digital de Teses e Dissertaçõeshttp://www.teses.usp.br/PUBhttp://www.teses.usp.br/cgi-bin/mtd2br.plvirginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.bropendoar:27212022-05-12T12:59:42Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Titanium dioxide nanotubes as reinforcement of a selfadhesive resin cement in self-curing mode
Nanotubos de dióxido de titânio como reforço de um cimento resinoso autoadesivo na fase de polimerização química
title Titanium dioxide nanotubes as reinforcement of a selfadhesive resin cement in self-curing mode
spellingShingle Titanium dioxide nanotubes as reinforcement of a selfadhesive resin cement in self-curing mode
Pacheco, Leandro Edgar
Cimentos dentários
Cimentos resinosos
Dental cements
Nanotubes
Nanotubos
Resin cements
Titânio
Titanium
title_short Titanium dioxide nanotubes as reinforcement of a selfadhesive resin cement in self-curing mode
title_full Titanium dioxide nanotubes as reinforcement of a selfadhesive resin cement in self-curing mode
title_fullStr Titanium dioxide nanotubes as reinforcement of a selfadhesive resin cement in self-curing mode
title_full_unstemmed Titanium dioxide nanotubes as reinforcement of a selfadhesive resin cement in self-curing mode
title_sort Titanium dioxide nanotubes as reinforcement of a selfadhesive resin cement in self-curing mode
author Pacheco, Leandro Edgar
author_facet Pacheco, Leandro Edgar
author_role author
dc.contributor.none.fl_str_mv Francisconi, Paulo Afonso Silveira
dc.contributor.author.fl_str_mv Pacheco, Leandro Edgar
dc.subject.por.fl_str_mv Cimentos dentários
Cimentos resinosos
Dental cements
Nanotubes
Nanotubos
Resin cements
Titânio
Titanium
topic Cimentos dentários
Cimentos resinosos
Dental cements
Nanotubes
Nanotubos
Resin cements
Titânio
Titanium
description Objective: This study has analyzed bond strength to root dentine and to fiberglass posts, and the radiopacity of self-adhesive dual resin cement in addition of titanium dioxide nanotubes (nt-TiO2) in self-curing polymerization. Material and Methods: The self-adhesive resin cement (RelyX U200TM, 3M ESPE) was enhanced with different concentrations (0.3, 0.6, and 0.9% by weight) of nt-TiO2 and evaluated at only self-curing mode. To test the bond strength to root dentine and fiberglass posts was applied the push out bond strength test (PO). To analyze the radiopacity was follow the ISO standard (9917-2/2010). Data were statistically analyzed by one-way ANOVA test, followed by post hoc multiple comparisons Fishers test for PO and Tukeys test for RO (p<0.05). Results: Reinforced self-adhesive resin cement influenced the increase in values of PO, especially in the S06 group (0.6 wt%), which demonstrated a higher value of bond strength, mainly in the apical third. However, this analysis not demonstrated statistical difference between the groups with nt-TiO2 addition (S03, S06 and S09) and the control group (SCT). For radiopacity, the addition of nt-TiO2 may provide an increase in value, especially to the S09 group, which showed a higher value with statistical difference in comparison with SCT group. Conclusion: The addition of nt- TiO2 showed influence at behavior of the self-cure mode of the self-adhesive resin cement, and its use in other concentrations may be considered for future studies, since reinforced cement may prove better results in indirect restorative procedures.
publishDate 2019
dc.date.none.fl_str_mv 2019-04-01
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://www.teses.usp.br/teses/disponiveis/25/25148/tde-25112019-210220/
url http://www.teses.usp.br/teses/disponiveis/25/25148/tde-25112019-210220/
dc.language.iso.fl_str_mv eng
language eng
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dc.rights.driver.fl_str_mv Liberar o conteúdo para acesso público.
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Liberar o conteúdo para acesso público.
eu_rights_str_mv openAccess
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dc.publisher.none.fl_str_mv Biblioteca Digitais de Teses e Dissertações da USP
publisher.none.fl_str_mv Biblioteca Digitais de Teses e Dissertações da USP
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reponame:Biblioteca Digital de Teses e Dissertações da USP
instname:Universidade de São Paulo (USP)
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reponame_str Biblioteca Digital de Teses e Dissertações da USP
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repository.name.fl_str_mv Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)
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