Adhesive properties of universal adhesives systems containing zinc oxide and copper nanoparticles on sound dentine: A 2-year evaluation

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dc.coverageDOI: 10.1016/j.ijadhadh.2025.104023
dc.creatorGutiérrez, Mario Felipe
dc.creatorAliaga-Gálvez, Romina
dc.creatorPardo-Diaz, Carolina
dc.creatorNuñez, Alejandra
dc.creatorCavagnaro, Sofía
dc.creatorMaturana, Rocío
dc.creatorReis, Alessandra
dc.creatorFernández, Eduardo
dc.creatorLoguercio, Alessandro D.
dc.date2025
dc.date.accessioned2025-11-18T19:44:17Z
dc.date.available2025-11-18T19:44:17Z
dc.description<p>Objectives: This study evaluated the effect of adding zinc oxide and copper nanoparticles (ZnO/CuNp) to universal adhesives (UA) on resin-dentine microtensile bond strength (μTBS), nanoleakage (NL), and the presence of ZnO/CuNp within the hybrid layer at immediate time (IM) and after 2 years of water storage (2y). Methods: ZnO/CuNp (commercial adhesive [control]; 5/0.1 and 5/0.2 wt%) were added to Prime&amp;Bond Active (PBA) and Ambar Universal (AMB). The UAs were applied to flat dentine surfaces, followed by composite resin build-ups. These were then sectioned into resin–dentine bonded sticks. μTBS, NL and presence of ZnO/CuNp in the hybrid layer were evaluated at IM and after 2y. Data were analyzed with three-way ANOVA and Tukey's post hoc test (α = 0.05). Results: The addition of ZnO/CuNp to UAs did not affect μTBS at IM (p &gt; 0.05). After 2y, μTBS values were higher in the 5/0.1 and 5/0.2 wt% groups for AMB (p &lt; 0.05), with values maintained for the PB (p &gt; 0.05). All groups showed a decrease in μTBS over time (p &lt; 0.05), except for the AMB-5/0.1 wt% group in etch-and-rinse mode. NL was lower in the ZnO/CuNp groups at both IM and 2y compared to control (p &lt; 0.05). NL increased over time for all groups (p &lt; 0.05). ZnO/CuNp remained in the hybrid layer after 2y. Conclusions: ZnO/CuNp improves adhesive interface stability and remains effective in the hybrid layer after 2 years of water storage.</p>eng
dc.identifierhttps://investigadores.uandes.cl/en/publications/b13b3654-ab47-49a9-a454-990583ad8616
dc.identifier.urihttps://repositorio.uandes.cl/handle/uandes/53314
dc.languageeng
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.sourcevol.140 (2025)
dc.subjectCopper
dc.subjectDentine
dc.subjectMicrotensile bond strength
dc.subjectNanoleakage
dc.subjectNanoparticles
dc.subjectUniversal adhesive system
dc.subjectZinc oxide
dc.titleAdhesive properties of universal adhesives systems containing zinc oxide and copper nanoparticles on sound dentine: A 2-year evaluationeng
dc.typeArticleeng
dc.typeArtículospa
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