Effect of chlorhexidine loading on shear bond strength and surface free energy of acrylic reline resins after thermal ageing

Detalhes bibliográficos
Autor(a) principal: Costa, Natália Alexandra Gonçalves da
Data de Publicação: 2018
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10451/35601
Resumo: Tese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2018
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spelling Effect of chlorhexidine loading on shear bond strength and surface free energy of acrylic reline resins after thermal ageingSaúde oralResinas acrílicasClorexidinaTeses de mestrado - 2018Domínio/Área Científica::Ciências Médicas::Medicina ClínicaTese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2018Loading acrylic reline resins with chlorhexidine has been proposed as an alternative treatment for Denture Stomatitis. The main goal of this study was to evaluate the influence of loading three acrylic reline resins, namely, Kooliner, Ufi Gel Hard and Probase Cold, with different concentrations of chlorhexidine (CHX) in terms of their shear bond strength and surface free energy after undergoing a thermal ageing process. Shear bond strength test was conducted resorting to a universal testing machine Instron, with 1kN load cell and crosshead speed of 1mm/min, with specimens of acrylic reline resins loaded with specific proportions of CHX linked to the denture base resin (n=10), after submitted to a thermal process that simulates ageing inside the oral cavity. Surface free energy was assessed resorting to specimens of acrylic reline resins loaded with specific percentages of CHX (n=7). Specimens were subjected to water and 1,2-propanediol to assess contact angles by the Wilhelmy plate technique, which allows the estimation of surface free energy values through the Wu method. Results were submitted to nonparametric tests according to the Kruskal-Wallis method, followed by multiple comparisons using Mann-Whitney tests with Bonferroni corrections, being considered the 5% level of significance (α=0.05). No differences in shear bond strength were observed when experimental Kooliner and Ufi Gel Hard groups where compared to control. Yet, 5% CHX Probase Cold group presented lower values than the control. In surface free energy test, statistical differences were not observed between groups of each material. In conclusion, after a thermal ageing procedure, loading CHX had no influence on shear bond strength of Kooliner and Ufi Gel Hard groups but a negative influence on Probase Cold on 5% CHX specimens. Loading chlorhexidine did not affected the surface free energy of all acrylic reline resins.Neves, Maria Cristina Bettencourt, 1976-Bettencourt, Ana FranciscaRepositório da Universidade de LisboaCosta, Natália Alexandra Gonçalves da2018-12-04T13:29:13Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10451/35601TID:201983877enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T16:31:31Zoai:repositorio.ul.pt:10451/35601Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:49:58.981471Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Effect of chlorhexidine loading on shear bond strength and surface free energy of acrylic reline resins after thermal ageing
title Effect of chlorhexidine loading on shear bond strength and surface free energy of acrylic reline resins after thermal ageing
spellingShingle Effect of chlorhexidine loading on shear bond strength and surface free energy of acrylic reline resins after thermal ageing
Costa, Natália Alexandra Gonçalves da
Saúde oral
Resinas acrílicas
Clorexidina
Teses de mestrado - 2018
Domínio/Área Científica::Ciências Médicas::Medicina Clínica
title_short Effect of chlorhexidine loading on shear bond strength and surface free energy of acrylic reline resins after thermal ageing
title_full Effect of chlorhexidine loading on shear bond strength and surface free energy of acrylic reline resins after thermal ageing
title_fullStr Effect of chlorhexidine loading on shear bond strength and surface free energy of acrylic reline resins after thermal ageing
title_full_unstemmed Effect of chlorhexidine loading on shear bond strength and surface free energy of acrylic reline resins after thermal ageing
title_sort Effect of chlorhexidine loading on shear bond strength and surface free energy of acrylic reline resins after thermal ageing
author Costa, Natália Alexandra Gonçalves da
author_facet Costa, Natália Alexandra Gonçalves da
author_role author
dc.contributor.none.fl_str_mv Neves, Maria Cristina Bettencourt, 1976-
Bettencourt, Ana Francisca
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Costa, Natália Alexandra Gonçalves da
dc.subject.por.fl_str_mv Saúde oral
Resinas acrílicas
Clorexidina
Teses de mestrado - 2018
Domínio/Área Científica::Ciências Médicas::Medicina Clínica
topic Saúde oral
Resinas acrílicas
Clorexidina
Teses de mestrado - 2018
Domínio/Área Científica::Ciências Médicas::Medicina Clínica
description Tese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2018
publishDate 2018
dc.date.none.fl_str_mv 2018-12-04T13:29:13Z
2018
2018-01-01T00:00:00Z
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://hdl.handle.net/10451/35601
TID:201983877
url http://hdl.handle.net/10451/35601
identifier_str_mv TID:201983877
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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