Akademik Veri Yönetim Sistemi
BMC Oral Health, cilt.25, sa.1, 2025 (SCI-Expanded)
Background: In the use of zirconia as a substrate material, the bonding mechanism with veneer ceramic and the effect of aging on the material are not yet fully known. The aim of this study is to evaluate the bond strength of zirconia substructure material with veneer ceramic before and after aging, which has been applied different surface treatments. Materials and methods: In this study, a total of 60 samples were obtained from the zirconia block in the same dimensions by using a microcut device. The prepared samples were randomly divided into three groups (n = 20) to apply different surface treatments (sandblasting, sandblasting + acid + silane-containing primer, Rocatec system + silane-containing primer). Afterwards, each group that applied different surface treatments was divided into two, and 10 samples from each group were subjected to thermal cycle treatment. The surface treatments applied before the thermal cycle on a total of 30 samples that came out of the thermal cycle were repeated under the same standards. A total of 60 specimens, whose surface preparations were completed, were covered with superstructure ceramic. Then, a shear bond strength test, was applied to each sample and statistical analysis was evaluated with the Post-Hoc LSD test by applying 2- way analysis of variance (Two Way Anova) and Bonferroni correction (α = 0.05). Results: According to the results of the statistical analysis, the highest bond strength was found in the Rocatec system + silane-containing primer group between both the aged and non-aged groups (p < 0.05). No statistically significant difference was found between the sandblasting group and the sandblasting + acid + silane-containing primer group. Shear bond strength was found to be statistically significantly lower in all groups that applied different surface treatments after the aging process (p < 0.05). Conclusions: According to the results of this study, the application of Rocatec system + silane- containing primer to zirconia as a surface treatment significantly increases the bond with veneer ceramic.