The impact of postoperative intracoronal bleaching on the microtensile bond strength at the composite-dentin interface

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dc.contributor.authorAyan, Gizem
dc.contributor.authorMisilli, Tugba
dc.contributor.authorBuldur, Mehmet
dc.contributor.authorDogan, Ayse Nur
dc.date.accessioned2026-02-03T11:59:45Z
dc.date.available2026-02-03T11:59:45Z
dc.date.issued2025
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe study evaluated the effects of postoperative bleaching with HP and CP on microtensile bond strength (mu TBS) and nanoleakage of composite restorations using total-/self-etch protocols. Sixty incisors with Black V cavities were restored using a multimode adhesive in total-/self-etch mode and resin composite. Samples were divided into five groups: control, CPx2, CPx5, HPx2, HPx5. After bleaching, 1x1x8 mm composite blocks (n=10) were tested for mu TBS, and failure types were assessed. Two samples per group were analyzed for nanoleakage via scanning electron microscope (SEM). Two-way analysis of variance, Bonferroni correction, and stepwise linear regression were applied. CPx5 and HPx5 groups exhibited significantly reduced mu TBS compared to control, and the self-etch protocol resulted in lower values regardless of bleaching method. Regression analysis confirmed significant effects of adhesive (total-etch) and bleaching (CPx5, HPx5). A significant relationship was found between failure modes and bleaching methods for each adhesive protocol, with adhesive failures being the most frequent. SEM revealed nanoleakage in all groups.
dc.description.sponsorshipanakkale Onsekiz Mart University Scientific Research Projects Coordination Unit [THD-2024-4753]
dc.description.sponsorshipThis study was supported by the Canakkale Onsekiz Mart University Scientific Research Projects Coordination Unit (Project number THD-2024-4753) . We acknowledge Nilay Tezel for her contributions to the SEM analysis and the preparation of the silver nitrate solution.
dc.identifier.doi10.4012/dmj.2025-046
dc.identifier.issn0287-4547
dc.identifier.issue5
dc.identifier.pmid40866242
dc.identifier.scopus2-s2.0-105017787809
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.4012/dmj.2025-046
dc.identifier.urihttps://hdl.handle.net/20.500.12428/34408
dc.identifier.volume44
dc.identifier.wosWOS:001589668500014
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherJapanese Soc Dental Materials Devices
dc.relation.ispartofDental Materials Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260130
dc.subjectAdhesion
dc.subjectIntracoronal bleaching
dc.subjectMicrotensile bond strength
dc.subjectNanoleakage
dc.titleThe impact of postoperative intracoronal bleaching on the microtensile bond strength at the composite-dentin interface
dc.typeArticle

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