introduction: retreatment of endodontically treated teeth is a challenge that requires complete removal of the previous filling material. several techniques are indicated for this procedure. the present review tries to identify the most efficient method for extirpation of resilon (rs) root fillings and to compare the speed and efficacy of rs and gutta-percha (gp) root filling removal. methods a...

introduction: the aim of the present experimental study was to evaluate the push-out bond strength of dorifill, epiphany and mta-fillapex sealers to root canal dentin in presence and absence of smear layer (sl). methods and materials: sixty human single-rooted teeth were selected and divided into six groups ( n= 10). the canal irrigation protocol in groups 1, 3 and 5 consisted of 2.5% naocl dur...

Two-jet cross sections in deep inelastic scattering at HERA are calculated in next-to-leading order. The importance of higher order corrections and recombination scheme dependencies is studied for various jetalgorithms. Some implications for the determination of αs(μ 2 R), the determination of the gluon density and the associated forward jet production in the low x regime at HERA are briefly di...

In this article, based on the talk given at the Cracow Epiphany Conference on Astroparticle Physics, I discuss some of the opportunities provided by high-energy and ultra-high energy neutrino astronomy in probing particle physics beyond the standard model. Following a short summary of current and next generation experiments, I review the prospects for observations of high-energy neutrino intera...

Resilon is a thermoplastic synthetic polymer-based endodontic material alternative to gutta-percha. It contains bioactive glass and also radiopaque fillers. It has the same handling properties as gutta-percha. For endodontic retreatment, it may be dissolved with some solvents, such as chloroform or softened with heat. The composition of Resilon and its sealer (Epiphany) bond to dentin and form ...