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    Öğe
    Color Stability and Durability of Dental Restorative Materials against Pediatric Liquid Drugs
    (Assoc Apoio Pesquisa & Saude Bucal-Apesb, 2026) Kucukersen, Merve Yaman; Keskin, Gul; Gundogar, Zubeyde Ucar
    Objective: To evaluate the color stability, surface roughness, and microhardness of dental restorative materials in various pediatric liquid drugs (PLDs). Material and Methods: A total of 175 restorative material discs were prepared for the following groups (n=25): Filtek Ultimate (FU), ACTIVA BioACTIVE Restorative (AC), ADMIRA Fusion X-tra (AD), Beautifil II (BII), Equia Forte (EQ), Fuj & imath; II Lc (FII), Fuji IX (FIX). After the initial colour assessment was performed, surface roughness and microhardness values were measured. Specimens were divided into five subgroups (n = 5) for each test, including Aerius, Ferrosanol, Atarax, Keppra, and Ventolin. Measurements were repeated following a 4-week immersion cycle. The resulting data were analyzed statistically using the Shapiro-Wilk, Kruskal-Wallis, and Friedman tests. Results: The FII group showed the highest Delta E. However, there was no significant difference between the BII and EQ groups (p>0.05). The Ferrasanol B caused the most significant color change in materials (p < 0.05). The Ventolin significantly increased the surface roughness of the materials (p < 0.05). Following the PLD storage, the surface roughness of the BII and FIX groups increased, while the microhardness of the FU, BII, EQ, and FII groups decreased (p < 0.05). The Aerius, Atarax, Keppra, and Ventolin significantly disrupted the microhardness of the materials (p < 0.05). Conclusion: Pediatric liquid drugs may cause unfavorable effects on the color stability and surface properties of restorative materials.
  • [ X ]
    Öğe
    Shear Bond Strength of Biointeractive Restorative Materials to NeoMTA Plus and Biodentine
    (Mdpi, 2025) Gundogar, Zubeyde Ucar; Keskin, Gul; Yaman Kucukersen, Merve
    Background: The bonding compatibility between calcium silicate-based bioceramic cements and restorative materials is critical for long-term success in pediatric dentistry. This study compared the shear bond strength (SBS) of contemporary biointeractive restorative materials to two widely used bioceramics, NeoMTA Plus (NM) and Biodentine (BD). Methods: Eighty acrylic resin blocks with standardized cavities were filled with either NM or BD (n = 40 each) and subdivided into four restorative groups: nanohybrid composite (Filtek Ultimate), giomer (Beautifil II), bioactive restorative (Activa BioActive Restorative), and high-viscosity glass ionomer cement (Fuji IX GP Extra) (n = 10 each). All restorations followed a standardized etch-and-bond protocol. SBS was measured using a universal testing machine, and failure modes were assessed under a stereomicroscope. Data were analyzed using one-way ANOVA and Tukey's HSD (p < 0.05). Results: BD exhibited significantly higher SBS values than NM (p < 0.001). In the BD group, Filtek Ultimate and Beautifil II achieved the highest and statistically comparable SBS, outperforming Activa BioActive Restorative and Fuji IX GP Extra (p < 0.05). In the NM group, no significant differences were found among materials. Adhesive failures predominated in NM (85%), while BD showed more cohesive failures (50%). Conclusions: Biodentine demonstrated superior bonding stability to restorative materials, with composite resin and giomer performing best. Giomer's bioactivity and ion release make it a viable alternative to composite resin in suitable clinical contexts.