Titanium dioxide nanotubes as reinforcement of a selfadhesive resin cement in self-curing mode
Autor(a) principal: | |
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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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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 |
dc.relation.none.fl_str_mv |
|
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 |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
|
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 |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações da USP instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Biblioteca Digital de Teses e Dissertações da USP |
collection |
Biblioteca Digital de Teses e Dissertações da USP |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
virginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.br |
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1815257347173384192 |