Journal of oral rehabilitation, 36(3), 226-235 (2008-11-04)
The aim of this randomized controlled clinical trial was to evaluate over a 5-year period, the clinical outcome of shrinkage-free ZrSiO(4)-ceramic (KaVo Everest HPC) full coverage crowns on posterior teeth in comparison with conventional gold crowns that served as the
The aim of this study was to characterize the surface of Y-TZP after abrasion with various airborne particles. The Y-TZP blanks were cut into 44 discs and sintered according to the manufacturer's instructions. The specimens were treated as follows: (a)
Zircon contains small amounts of uranium, thorium and radium in its crystalline structure. The ceramic industry is one of the major consumers of zirconium compounds that are used as an ingredient at ∼10-20 % by weight in glaze. In this
Selective accumulation of zircons and ilmenites in diverticula of the sea urchin Scaphechinus mirabilis (Agazzis, 1863).
Yu N Elkin et al.
Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections, 446, 297-299 (2012-11-07)
Journal of physics. Condensed matter : an Institute of Physics journal, 23(10), 105402-105402 (2011-02-23)
Iron is a ubiquitous impurity in metamict (radiation-damaged and partially amorphized) materials such as titanite (CaSiTiO(5)). Using (57)Fe Mössbauer spectroscopy we find that iron in metamict titanite is partitioned between amorphous and crystalline regions based on valence. Trivalent iron exists
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