Do different pretreatments of dentine surface affect the bond strength with a self-adhesive resin cement?

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dc.creatorBruna de Oliveira Reis
dc.creatorAndré Gustavo de Lima Godas
dc.creatorThaís Yumi Umeda Suzuki
dc.creatorTiciane Cestari Fagundes Tozzi
dc.creatorAndré Luis Fraga Briso
dc.creatorPaulo Henrique dos Santos
dc.date.accessioned2023-04-17T22:37:39Z
dc.date.accessioned2025-09-09T01:34:08Z
dc.date.available2023-04-17T22:37:39Z
dc.date.issued2020-01-12
dc.description.sponsorshipFAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo
dc.format.mimetypepdf
dc.identifier.doi10.3290/j.ohpd.a43355
dc.identifier.issn17579996
dc.identifier.urihttps://hdl.handle.net/1843/52119
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofOral Health & Preventive Dentistry
dc.rightsAcesso Aberto
dc.subjectDentin
dc.subjectResin cements
dc.subjectTensile strength
dc.subjectComposite resins
dc.subjectAdhesives
dc.subjectChlorhexidine
dc.titleDo different pretreatments of dentine surface affect the bond strength with a self-adhesive resin cement?
dc.typeArtigo de periódico
local.citation.epage152
local.citation.issue02
local.citation.spage145
local.citation.volume18
local.description.resumoPurpose: To evaluate the microtensile bond strength of dentine/self-adhesive resin cement interface after several treatments on a dentine surface. Materials and Methods: Twenty-eight human molars were selected and divided into four groups: no treatment (control (C)); 2% chlorhexidine digluconate (CHX); 25% polyacrylic acid (PA); and 23 ppm dispersive solution of silver nanoparticle (SN). Prepolymerised TPH resin composite (Dentsply) blocks were luted on the dentine surface using RelyX U200 self-adhesive resin cement (3M ESPE). Microtensile bond strength was measured (MPa) in a universal testing machine 24 h and 6 months after the bonding process. The fractured specimens were examined in an optical microscope and classified according to the fracture pattern. A representative sample of each group was observed by scanning electronic microscope. Data were submitted to analysis of variance (ANOVA) and Tukey's test to compare the mean among the groups (p <0.05). Results: The highest microtensile bond strength values after 24 h were found for the PA group (13.34 ± 6.36 MPa), with no statistically significant difference for the C group (9.76 ± 3.11 Mpa). After 6 months, the highest microtensile bond strength values were found for the C group (9.09 ± 3.27 Mpa), with statistically significant difference only for the CHX group (2.94 ± 1.66 MPa). There was statistically significant difference only for the PA group when comparing the periods studied. Regardless of the surface treatment applied, there were more adhesive failures in both periods of time. Conclusion: Dentinal pretreatment with PA, as well as use of SN before the bonding procedure of self-adhesive resin cement to dentine, may be alternative bonding protocols.
local.publisher.countryBrasil
local.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORA
local.publisher.initialsUFMG
local.url.externahttps://www.quintessence-publishing.com/deu/en/article/842278

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