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Der Einfluss fluoridhaltiger Carbamidperoxid-Bleichgele auf den Fluoridgehalt und die Mikrohärte von Zahnschmelz - Eine In-vitro-Untersuchung / The influence of fluoridated carbamide peroxide bleaching gel on the Fluoride content and the microhardness of enamel - An In-vitro-studyWitzke, Helene 21 January 2010 (has links)
No description available.
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Vliv prostředí s korozním účinkem na dlouhodobou stabilitu adhezního spoje mezi sklovinou, dentinem a kompozitními materiály / Effect of corrosion environment on the long-term stability of composite material to enamel and dentin bondsDudek, Michal January 2013 (has links)
Introduction: Adhesive technology represents a significant advancement among different treatment options of dental caries. Its advantages involve not only highly aesthetic reconstructions, but also ability to preserve hard dental tissues compared to more traditional filling materials such as amalgam, where the material retention was achieved through undercuts. A potential of adhesive technology to arrest progression of an incipient caries has triggered its wider use in dental caries management, potentiated by an ongoing development of new adhesive systems and composite materials that assure an acceptable long-term stability of adhesive reconstructions. Adhesive bonds of dental reconstructions are in the oral cavity constantly challenged by various mechanical, chemical and biological factors. One of the chemical agents with detrimental potential is peroxide bleaching gel used for teeth brightening. Currently bleaching belongs to the most frequent cosmetic dental procedures. The active ingredient of bleaching gels is hydrogen peroxide or its precursors. It is assumed that free oxygen radicals released from peroxides attack double bonds of chromophore molecules captured within the tooth tissues. Because of the high reactivity and nonspecific nature of these oxygen radicals, they may affect also dental...
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