Show simple item record

dc.contributor.authorAugusto, M. G. [UNESP]
dc.contributor.authorTorres, C. R.G. [UNESP]
dc.contributor.authorPucci, C. R. [UNESP]
dc.contributor.authorSchlueter, N.
dc.contributor.authorBorges, A. B. [UNESP]
dc.identifier.citationOperative Dentistry, v. 43, n. 3, p. 291-300, 2018.
dc.description.abstractObjective: Erosive/abrasive challenges can potentially compromise bonding to dentin. Aiming to improve the quality and stability of bonding to this substrate, this study investigated the combined effect of erosion and toothbrush abrasion on the microtensile bond strength (μTBS) stability to dentin using a universal adhesive system in total and selfetching modes, associated or not associated with deproteinization. Methods: Bovine dentin specimens were divided into five groups according to the organic matrix condition (n=20): control (C); erosion (E); erosion + abrasion (EA); erosion + sodium hypochlorite (EH); erosion + abrasion + sodium hypochlorite (EAH). The groups were further divided (n=10) according to the mode of application (total or self-etching) of a universal adhesive. After the bonding procedure, composite blocks were built up, and the samples were cut to obtain sticks for μTBS testing. For each specimen, one-half of the sticks was immediately tested, and the other one-half was tested after artificial aging (5000 thermocycles, 5°C and 55°C). Results: Three-way analysis of variance (α=5%) showed a significant difference for the triple interaction (p=0.0007). Higher μTBS means were obtained for the EH and EAH groups compared with the E and EA groups. The control group showed immediate μTBS values similar to that of the E and EA groups for both bond strategies. Conclusions: Erosion and erosion/abrasion did not significantly influence the immediate μTBS to dentin. Artificial aging reduced μTBS values for the groups C, E, and EA using the totaletching mode. Deproteinization maintained the bond stability to artificially aged eroded and eroded/abraded dentin.en
dc.relation.ispartofOperative Dentistry
dc.titleBond stability of a universal adhesive system to eroded/abraded dentin after deproteinizationen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionMedical Center-University of Freiburg
dc.description.affiliationDepartment of Restorative Dentistry Institute of Science and Technology Saõ Paulo State University - UNESP, Av Eng Francisco José Longo, 777
dc.description.affiliationDivision for Cariology Department of Operative Dentistry and Periodontology Medical Center-University of Freiburg
dc.description.affiliationUnespDepartment of Restorative Dentistry Institute of Science and Technology Saõ Paulo State University - UNESP, Av Eng Francisco José Longo, 777
dc.rights.accessRightsAcesso restrito
Localize o texto completo

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record