Long Term Fatigue Behavior of Zirconia Based Dental Ceramics
AbstractThis study evaluated the influence of cyclic loading on zirconia bar-shaped specimens after being subjected to three different surface treatments: particle abrasion with either 50 μm or 110 μm alumina and grinding with diamond points, while polished specimens served as a control. Statistical analysis revealed significant reduction (38-67%) in flexure strength (P < 0.001) after three million cycles of dynamic loading for all surface treatments. Scanning electron imaging revealed grain boundary thickening, grain pull-out, and micro-cracking as the main structural defects. The results suggest that various surface treatments of zirconia based dental ceramics may significantly influence their long term fatigue resistance in the oral environment.
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Aboushelib, M.N. Long Term Fatigue Behavior of Zirconia Based Dental Ceramics. Materials 2010, 3, 2975-2985.
Aboushelib MN. Long Term Fatigue Behavior of Zirconia Based Dental Ceramics. Materials. 2010; 3(5):2975-2985.Chicago/Turabian Style
Aboushelib, Moustafa N. 2010. "Long Term Fatigue Behavior of Zirconia Based Dental Ceramics." Materials 3, no. 5: 2975-2985.