Yazar "Dogan, Ayse Nur" seçeneğine göre listele

Listeleniyor 1 - 1 / 1
  • [ X ]
    Öğe
    The impact of postoperative intracoronal bleaching on the microtensile bond strength at the composite-dentin interface
    (Japanese Soc Dental Materials Devices, 2025) Ayan, Gizem; Misilli, Tugba; Buldur, Mehmet; Dogan, Ayse Nur
    The 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.