منابع مشابه
Microstructure of dental amalgams containing high and low copper contents.
Microstructure of commercial dental alloys and their amalgams were studied primarily by x-ray diffraction, optical metallography, scanning electron microscopy, and x-ray energy dispersive spectroscopy. X-ray diffraction revealed more phases than normally reported in these materials. Presence of new phase was discussed and their formation mechanism understood. Some phases having interacting 2 th...
متن کاملDiffraction Analysis of Y 2 ( Sn - Hg ) Phase in High Copper Amalgams of Varying Mercury Content
Microstructures of high copper commercial amalgams containing varying amounts of mercury, ranging from 20% above to 25% below recommended values, were primarily investigated by xray diffraction. Mechanisms relating to the absence or presence of 72 (Sn-Hg) phase in these amalgams were discussed in relation to the presence of copper and tin elements in their original alloys. The optimum mercury c...
متن کاملHistopathologic and bacterial evaluation of conventional and new copper amalgams.
In vivo pulpal responses in monkeys and in vitro bacterial inhibition studies were completed on new copper amalgams, Sybraloy, Dispersalloy, Tytin and a conventional Spheraloy amalgam. Amalgams were placed in cavities lined with ZOE and in unlined cavities. Silicate and ZOE were used as controls. A total of 165 adult monkey teeth were evaluated at 3 days, 5 and 8 weeks. At 3 days the pulpal res...
متن کاملArchives of the Röntgen Ray
This publication, a "quarterly," contains the transactions of the comparatively new Rontgen Society. From the 'Editorial' with which this number commences we learn that the work of the Society will follow three chief lines of enquiry :?(1) a study from a purely scientific standpoint of the nature of Rontgen Rays; (2) a practical enquiry into the best apparatus for their production ; (3) an inve...
متن کاملEffect of Self-etch Adhesives on Self-sealing Ability of High-Copper Amalgams
STATEMENT OF THE PROBLEM Similar to conventional amalgam, high-copper amalgam alloy may also undergo corrosion, but it takes longer time for the resulting products to reduce microleakage by sealing the micro-gap at the tooth/amalgam interface. PURPOSE The aim of this study was to evaluate the effect of self-etch adhesives with different pH levels on the interfacial corrosion behavior of high-...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1930
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.5.13