کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7207865 1469084 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fatigue limit of polycrystalline zirconium oxide ceramics: Effect of grinding and low-temperature aging
ترجمه فارسی عنوان
حد خستگی سرامیک اکسید زیرکونیوم پلی کریستالی: اثر آسیاب کردن و پیری کم دما
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
چکیده انگلیسی
The following study aimed to evaluate the effect of grinding and low-temperature aging on the fatigue limit of Y-TZP ceramics for frameworks and monolithic restorations. Disc specimens from each ceramic material, Lava Frame (3M ESPE) and Zirlux FC (Ivoclar Vivadent) were manufactured according to ISO:6872-2008 and assigned in accordance with two factors: (1) “surface treatment”-without treatment (as-sintered, Ctrl), grinding with coarse diamond bur (181 µm; Grinding); and (2) “low-temperature aging (LTD)” - presence and absence. Grinding was performed using a contra-angle handpiece under constant water-cooling. LTD was simulated in an autoclave at 134 °C under 2-bar pressure for 20 h. Mean flexural fatigue limits (20,000 cycles) were determined under sinusoidal loading using stair case approach. For Lava ceramic, it was observed a statistical increase after grinding procedure and different behavior after LTD stimuli (Ctrl
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanical Behavior of Biomedical Materials - Volume 61, August 2016, Pages 45-54
نویسندگان
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