Root canal irrigants play a significant role in elimination of the microorganisms, tissue remnants, and removal of the debris and smear layer. No single solution is able to fulfill all these actions completely; therefore, a combination of irrigants may be required. The aim of this investigation was to review the agonistic and antagonistic interactions between chlorhexidine (CHX) and other irrig...

Endogenous phospholipase D and phosphatidic acid phosphatase activities were demonstrated in membrane fractions isolated from soybean (Glycine max L.) hypocotyls. Phospholipase D activity was distributed widely among different membrane fractions while phosphatidic acid phosphatase was found predominantly in membranes equilibrating in lower sucrose densities. Phospholipase D action was unaffecte...

the aim of this work was to study the ability of two biodegradable chelating agents, nitrilotriaceticacid (nta) and ethylenediiminopropanedioic acid (eddm) to complex metals, in the treatment of the pulp,prior to a totally chlorine free (tcf) bleaching process, and compare with the ethylenediaminetetraacetic acid(edta) performance. firstly, speciation efficiency index (sei) was calculated by co...

the purpose of the review was to assess the effect of root canal irrigants on dentin bonding. a pubmed-based search was conducted on the articles published from 1980 to 2016. a brief overview and reviewing the effect on dentin bonding of common root canal irrigation solutions such as sodium hypochlorite (naocl), chlorhexidine (chx), ethylenediaminetetraacetic acid (edta), mixture of a tetracycl...

Several mutants isolated after N-methyl-N'-nitro-N-nitrosoguanidine mutagenesis of Streptomyces cacaoi strain KCCS-0352, were resistant to benzylpenicillin ranging in concentration from 1,000 to 5,000 micrograms/ml (4- to 20-fold more resistant than the parent). These mutants also acquired resistance to mecillinam, cephamycin C and methicillin. The affinity for beta-lactams of penicillin-bindin...

The regulation of fatty acid biosynthesis by compounds that are required for growth of Bacillus thuringiensis was investigated using an vivo assay developed to measure fatty acid synthesis in germinating spores. A minimal glucose-ammonium-salts medium does not support growth even though previous radiorespirometric studies have shown B. thuringiensis to possess intact tricarboxylic acid and Embd...