The emergence of multidrug-resistant bacteria is a global threat for human society. There exist recorded data that silver was used as an antimicrobial agent by the ancient Greeks and Romans during the 8th century. Silver nanoparticles (AgNPs) are of potential interest because of their effective antibacterial and antiviral activities, with minimal cytotoxic effects on the cells. However, very fe...

background: despite the discovery of numerous antibiotics, drug resistance still remains as a major problem. therefore, it is important to introduce and replace new sources of drug such as medicinal plants with antimicrobial properties. objective: the genus clematis (ranunculaceae family) has six species in iran. aerial parts of clematis have been used to cure fever and chronic diseases such as...

ROPIVACAINE (1-propyl-29,69-pipecoloxylidide) is a long-acting aminoamide local anesthetic that has been introduced into clinical use in the last few years, largely as a replacement for bupivacaine. Bupivacaine has been reported to possess a significant antibacterial effect. Because data regarding ropivacaine are not available, we compared the antibacterial effects of clinically appropriate con...

Fourteen antineoplastic agents were examined for in vitro antibacterial activity against 101 aerobic and anaerobic bacterial isolates representing indigenous human microflora and selected opportunistic pathogens. Only 5-fluorouracil, mitomycin, and etoposide demonstrated inhibitory effects at achievable plasma concentrations, while the remaining drugs lacked appreciable antibacterial activities.

4′,5,7-Trihydroxy-3′-prenylflavanone was synthesized and tested for antibacterial effects against Bacillus subtilis, Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. The synthesized compounds were characterized using UV, IR, MS and 1H and 13C NMR data. The antibacterial screening of the synthesized compounds were performed in vitro by the filter paper disc diffusion method.

background and aims. the aim of this study was to evaluate the antibacterial activity of one-step self-etch adhesives on enterococcus faecalis on days 1, 7 and 14 with the use of modified direct contact test. materials and methods. the modified direct contact test was used to evaluate the antibacterial effect of adper easy one, bond force, clearfil s3 bond, futurabond m, g-bond, ibond and optib...

white spot lesions are observed in nearly 50% of patients undergoing orthodontic treatment. long-lasting antibacterial properties of orthodontic cements can reduce this phenomenon. the aim of this research was to compare antimicrobial activity of three commercial glass ionomer cements with three commercial zinc phosphate cements, over time, against streptococcus mutans and candida albicans. dir...

Nanofillers can reduce enamel demineralization without compromising physical properties of the composite. The aim of this study was to evaluate shear bond strength (SBS) and antibacterial effects of an orthodontic composite after adding titanium oxide (TiO2) nanoparticles. Light cure orthodontic composite paste (Transbond XT) was blended with TiO2 nanoparticles. A total of 30 extracted premolar...

AIMS AND OBJECTIVES The aims of the present study were to determine and compare the effects of different concentrations of Althaea officinalis extract, 0.2% chlorhexidine (CHX), and penicillin on Streptococcus mutans and Lactobacillus acidophilus in vitro. MATERIALS AND METHODS The laboratory study was done, for a period of 8 weeks. Minimum inhibitory concentration (MIC) in the test tube, min...