Microtensile dentin bond strength evaluation of different adhesive systems: in vitro study

Detalhes bibliográficos
Autor(a) principal: Campos, Sandra Filipa Seabra de
Data de Publicação: 2013
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/36208
Resumo: Trabalho final do 5º ano com vista à atribuição do grau de mestre no âmbito do ciclo de estudos de Mestrado Integrado em Medicina Dentária apresentado à Faculdade de Medicina da Universidade de Coimbra.
id RCAP_c24441b2f20b101034af41649a3de82a
oai_identifier_str oai:estudogeral.uc.pt:10316/36208
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Microtensile dentin bond strength evaluation of different adhesive systems: in vitro studyMicrotensileDentin bond strengthEtch-and-rinseSelf-etchDentin adhesionTrabalho final do 5º ano com vista à atribuição do grau de mestre no âmbito do ciclo de estudos de Mestrado Integrado em Medicina Dentária apresentado à Faculdade de Medicina da Universidade de Coimbra.Introduction: Modern restorative dentistry has been extensively influenced by the fast progress in dental adhesive technology. To assess the effectiveness of adhesive systems and to predict their clinical performance the resin-dentin bond strength tests has been widely used. Purpose: The goal of this study was to compare the microtensile bond strength of five different adhesives systems at the dentin-composite interface and evaluate failure modes. Materials and methods: Flat dentin surfaces were prepared in 25 non-carious human molars. Exposed dentin surfaces were wet-grounded with 240-, 400- and 600-grit silicon-carbide sandpaper to create bonding surfaces with a standardized smear layer. The teeth were randomly divided into 5 distinct groups according to the adhesive system tested: three self-etching adhesive systems, Xeno® V+ (Dentsply DeTrey, Konstanz, Germany); Xeno® III (Dentsply DeTrey, Konstanz, Germany) and ClearfilTM SE Bond (Kuraray Medical Inc., Okayama, Japan), and two etch-and-rinse adhesive systems, OptiBondTM FL (Kerr, Orange, CA, USA) and Prime&Bond® NT (Dentsply DeTrey, Konstanz, Germany) applied with respect to manufacturer’s instructions. After adhesive procedures a 4-mm thick composite crown was built over the bonded surface. Following the storage in distilled water at 37 ºC, the samples were vertically cross-sectioned until obtaining sticks with 1.37mm2 of cross-sectional area which were tested in tension in a universal testing machine at 0.5 mm/min. Data were analyzed by one-away ANOVA and a Tukey HSD post-hoc test (p<0.05). The mode of failure was also analysed with optical microscopy. Additionally, dentin disks were obtained, treated with the different conditioners and primers and observed by scanning electron microscopy (SEM). Results: The following microtensile bond strengths were registered (mean in MPa±SD): Group I – Xeno® V+ 3.70±5.01; Group II - Xeno® III 18.94±13.87; Group III – OptiBondTM FL 43.29±12.74; Group IV- Prime&Bond® NT 39.64±15.06 and Group V – ClearfilTM SE Bond 42.80±10.65. Etch-and-rinse (OptiBondTM FL; Prime & Bond® NT) and two-step self-etching (ClearfilTM SE Bond) adhesive systems attained significant higher microtensile bond strength, without statistically significant differences between them. Significant lower values were obtained for Xeno® V+ comparing to Xeno® III. Cohesive composite failures were related with the higher bond strength values, whereas the adhesive failures were associated with the lowest bond strength values. Conclusion: Among the materials evaluated, etch-and-rinse and two-step self-etching adhesive systems presented higher dentin bond strength than the one-step self-etching adhesive systems.2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttp://hdl.handle.net/10316/36208http://hdl.handle.net/10316/36208engCampos, Sandra Filipa Seabra deinfo: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:RCAAP2022-01-20T17:48:51Zoai:estudogeral.uc.pt:10316/36208Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:45:31.581347Repositório 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 Microtensile dentin bond strength evaluation of different adhesive systems: in vitro study
title Microtensile dentin bond strength evaluation of different adhesive systems: in vitro study
spellingShingle Microtensile dentin bond strength evaluation of different adhesive systems: in vitro study
Campos, Sandra Filipa Seabra de
Microtensile
Dentin bond strength
Etch-and-rinse
Self-etch
Dentin adhesion
title_short Microtensile dentin bond strength evaluation of different adhesive systems: in vitro study
title_full Microtensile dentin bond strength evaluation of different adhesive systems: in vitro study
title_fullStr Microtensile dentin bond strength evaluation of different adhesive systems: in vitro study
title_full_unstemmed Microtensile dentin bond strength evaluation of different adhesive systems: in vitro study
title_sort Microtensile dentin bond strength evaluation of different adhesive systems: in vitro study
author Campos, Sandra Filipa Seabra de
author_facet Campos, Sandra Filipa Seabra de
author_role author
dc.contributor.author.fl_str_mv Campos, Sandra Filipa Seabra de
dc.subject.por.fl_str_mv Microtensile
Dentin bond strength
Etch-and-rinse
Self-etch
Dentin adhesion
topic Microtensile
Dentin bond strength
Etch-and-rinse
Self-etch
Dentin adhesion
description Trabalho final do 5º ano com vista à atribuição do grau de mestre no âmbito do ciclo de estudos de Mestrado Integrado em Medicina Dentária apresentado à Faculdade de Medicina da Universidade de Coimbra.
publishDate 2013
dc.date.none.fl_str_mv 2013
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/10316/36208
http://hdl.handle.net/10316/36208
url http://hdl.handle.net/10316/36208
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.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
repository.mail.fl_str_mv
_version_ 1799133730034417664

Registros relacionados