کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1423401 986522 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fatigue of packable dental composites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Fatigue of packable dental composites
چکیده انگلیسی

ObjectiveThe purpose of the study was to measure the fatigue properties of four dental resin composites using a dynamic mechanical analysis and to relate the results with viscoelastic properties.MethodsDynamic torsional loading was conducted at resonance at 30–50 Hz. Specimens were thoroughly cured and tested dry at 21 °C.ResultsAll of the specimens showed a loss of strength following repeated stress, due to material fatigue. The material with the highest shear modulus had the lowest damping and the highest fatigue strength.SignificanceDental composites exhibit a modest loss of strength due to fatigue. Since mastication involves many cycles of stress during the life of a restoration, fatigue properties should be taken into account in restoration design.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dental Materials - Volume 23, Issue 2, February 2007, Pages 235–242
نویسندگان
, , , , ,