Results: 445

Effect of γ-lactones and γ-lactams compounds on Streptococcus mutans biofilms

J. appl. oral sci; 26 (), 2018
Abstract Considering oral diseases, antibiofilm compounds can decrease the accumulation of pathogenic species such as Streptococcus mutans at micro-areas of teeth, dental restorations or implant-supported prostheses. Objective To assess the effect of thirteen different novel lactam-based compounds on th...

Two mechanisms of oral malodor inhibition by zinc ions

J. appl. oral sci; 26 (), 2018
Abstract Objectives The aim of this study was to reveal the mechanisms by which zinc ions inhibit oral malodor. Material and Methods The direct binding of zinc ions to gaseous hydrogen sulfide (H2S) was assessed in comparison with other metal ions. Nine metal chlorides and six metal acetates were exami...

Doxycycline-containing glass ionomer cement for arresting residual caries: an in vitro study and a pilot trial

J. appl. oral sci; 26 (), 2018
Abstract In a previous study, we demonstrated that the incorporation of doxycycline hyclate (DOX) into resin-modified glass ionomer cement (RMGIC) inhibited important cariogenic microorganisms, without modifying its biological and mechanical characteristics. In this study, we keep focused on the effect o...

Microbiological and clinical effects of probiotics and antibiotics on nonsurgical treatment of chronic periodontitis: a randomized placebo- controlled trial with 9-month follow-up

J. appl. oral sci; 26 (), 2018
ABSTRACT Objective: The aim of this double-blind, placebo-controlled and parallel- arm randomized clinical trial was to evaluate the effects of Lactobacillus rhamnosus SP1-containing probiotic sachet and azithromycin tablets as an adjunct to nonsurgical therapy in clinical parameters and in presence and...

Estudio de susceptibilidad a cefalosporinas de primera generación en enterobacterias aisladas de urocultivo, según criterios CLSI y EUCAST

Rev. chil. infectol; 35 (3), 2018
Resumen Actualmente se recomienda el uso de cefazolina para determinar la susceptibilidad a cefalosporinas orales de primera generación en cepas de enterobacterias en ITU no complicada. Nuestro objetivo fue establecer la susceptibilidad a cefalosporinas orales en cepas urinarias según puntos de corte p...

Bases moleculares de la resistencia a meticilina en Staphylococcus aureus

Rev. chil. infectol; 35 (1), 2018
Resumen Desde el inicio de la era antimicrobiana se han ido seleccionando gradualmente cepas de Staphylococcus aureus resistentes a antimicrobianos de amplio uso clínico. Es así como en 1960 se describen en Inglaterra las primeras cepas resistentes a meticilina, y algunos años después son informadas ...

Caracterización molecular y patrón de susceptibilidad antimicrobiana de Escherichia coli productora de β -lactamasas de espectro extendido en infección del tracto urinario adquirida en la comunidad

Rev. chil. infectol; 35 (1), 2018
Resumen Introducción Las infecciones del tracto urinario adquiridas en la comunidad (ITUac) causadas por cepas de Escherichia coli productoras de β-lactamasas de espectro extendido (BLEE), principalmente por cepas que contienen el gen blaCTX-M-15, es un fenómeno creciente a nivel mundial. Objeti...

Análisis de susceptibilidad antimicrobiana y hallazgos microbiológicos: perfil en cirugía abdominal de urgencia

Rev. chil. cir; 70 (1), 2018
Resumen Introducción La resistencia a antibióticos es un problema mundial. En los pacientes que requieren cirugía de urgencia, los antibióticos son un apoyo importante concomitante al acto quirúrgico. Objetivo Analizar los cultivos de líquido peritoneal obtenidos de pacientes operados por patolog...

Efficacy of relacin combined with sodium hypochlorite against Enterococcus faecalis biofilms

J. appl. oral sci; 26 (), 2018
Abstract Objective Relacin is a synthetic molecule that targets RelA, an essential protein in a conserved bacterial stress response system. It was shown to inhibit bacterial growth. The aims of this study were to evaluate the antimicrobial effect of relacin combined with sodium hypochlorite (NaOCl) on ...

Evaluation of physical-mechanical properties, antibacterial effect, and cytotoxicity of temporary restorative materials

J. appl. oral sci; 26 (), 2018
Abstract The objective of this study was to compare selective physical-mechanical properties, antibacterial effects and cytotoxicity of seven temporary restorative materials (TRM): five resin-based materials [Bioplic (B), Fill Magic Tempo (FM), Fermit inlay (F), Luxatemp LC (L) and Revotek LC (R)], and z...