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Çeşitli Yüzey İşlemleri Uygulanan Rezin Matriks Seramiklerin Rezin Siman Kullanılarak Dişe Bağlantılarının In-Vıtro Olarak İncelenmesi

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elif_melike_akarca.pdf (3.060Mb)
Date
2019
Author
Akarca, Elif Melike
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Abstract
In-vitro Evaluation of Shear Bond Strength of Resin Matrix Ceramics with Different Surface Treatment Methods, Hacettepe University Faculty of Dentistry Deparment of Prosthodontics, Specialization Thesis, Ankara, 2019. The purpose of this in-vitro study is; to comparative evaluation of shear bond strength of three different materials which are nanoceramic and hibrit ceramic structure and scan with a scanning electron microscope. To accomplish this study, extracted carious-free human incisor, canine and molar teeth were selected and vestibule surfaces were cut flat to get a flat enamel and dentin surfaces. A total of 84 beans were produced in the form of 5x5x2 mm square prisms from three different resin ceramic blocks (Enamic, Cerasmart, Lava Ultimate). This ceramic specimens cemented to tooth surface with dual cure resin cement (Variolink II). 3000 termal cycles were applied to half of the 28 specimens from each groups. Shear bond strength test was performed using a universal testing machine. A scanning electron microscope was used for the evaluation of the bonding surfaces between adhesive resin cement and dentine. Normal distributions of the data were examined by Shapiro Wilk test. Normal distribution data were compared using one-way analysis of variance. Tukey HSD was used when testing differences among the groups, Kruskal Wallis test was used when there was no difference. Analyzes were conducted at a confidence interval of 0.05. The difference among the bond strength in all groups before and after the thermal cycling was found statistically significant. The bond strength values before and after the thermal cycling were determined as Enamic, Lava Ultimate and Cerasmart in descending order, respectively. The highest decrease in bond strength after thermal cycling was seen in Cerasmart and the least decrease was seen in Enamic group.
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http://hdl.handle.net/11655/8533
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