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GÜRDAL, IŞIL

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IŞIL
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GÜRDAL
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2018 - 20192
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Author: ÇAL, EBRU ×

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    Effects of New Generation All-Ceramic and Provisional Materials on Fibroblast Cells
    (2019-01-01T00:00:00Z) Atay, Ayse; GÜRDAL, IŞIL; BOZOK ÇETİNTAŞ, VİLDAN; Usumez, Aslihan; ÇAL, EBRU; GÜRDAL, IŞIL
    Purpose The purpose of this in vitro study was to evaluate the cytotoxic and apoptotic effects of seven new-generation all-ceramic materials for CAD/CAM (Lava Ultimate [LU], VITA Mark II [VM], InCoris TZI [IC], IPS e.max CAD [EM], VITA Suprinity [VS], Cerasmart [CS], IPS Empress CAD [EC]) and six provisional materials (Protemp 4 [PT], Telio CAD [TC], CAD-Temp [CT], Telio Lab [TL], Temdent Classic [TD], Telio CS C&B [TS]) on L929 mouse fibroblast cells. Materials and Methods 24 disc-shaped specimens ( null = 5 mm, h = 2 mm) were prepared from each test material. Medium extracts were collected at the 1st, 3rd, and 7th days for each group and tested using the L929 cell line. Cytotoxicity was evaluated using XTT assay, and apoptosis was determined by Annexin-V/PI staining. Data were analyzed using one-way ANOVA, Tukey-s multiple comparison tests at a significance level of p < 0.05. Results The cell viability results among all-ceramic material groups after the 1st and 7th days of incubation periods showed statistically significant differences (p < 0.05). There were significant differences within the ceramic groups in different incubation periods regarding apoptosis rate (p < 0.05). Throughout the entire test period, LU and VM from the CAD/CAM all-ceramic materials and PT and TC from the provisional restoration materials showed cell viability higher than 90%. EC and TD showed the lowest cell viability and highest apoptosis rates in their own groups. For the provisional materials, there were significant differences in cell viability and apoptosis rate in all the incubation periods for each material (p < 0.05). Conclusions Although some new-generation CAD/CAM and provisional restoration materials display slight cytotoxicity values, the results are still within the reliable range, and they can safely be used in clinical conditions.
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    Color change of CAD-CAM materials and composite resin cements after thermocycling
    (2018-10-01T00:00:00Z) GÜRDAL, IŞIL; Atay, Ayse; Eichberger, Marlis; ÇAL, EBRU; Usumez, Aslihan; Stawarczyk, Bogna; GÜRDAL, IŞIL
    Statement of problem. The color of resin cements and computer-aided-design and computeraided-manufacturing (CAD-CAM) restorations may change with aging.