Molecular characterization of antimicrobial resistance in Klebsiella pneumoniae isolated from Brazilian dairy herds.

In this observational study, phenotypic and genotypic patterns of antimicrobial resistance (AMR) in Klebsiella pneumoniae isolated from intramammary infections, clinical mastitis, fresh feces, rectal swabs, animal hindlimbs, and bulk tank milk samples from Brazilian dairy herds were investigated. In addition, we identified specific genetic variants present among extended-spectrum β-lactamase (ESBL) producers. We obtained 169 isolates of K.

Treatment of an Acute Apical Abscess in a Patient With Autoimmune Hepatitis Taking Alendronate: A Case Report.

Introduction: The aim of this study was to report a patient's clinical case who was diagnosed with severe apical abscess and with autoimmune hepatitis (AIH) using immunosuppressive drugs and bisphosphonate.

Methods: A 32-year-old man of black African descent urgently sought dental surgery because of an increase in volume in the right genic region and a nuisance in the region of the lower right second premolar when chewing. After intraoral and radiographic clinical examination, the patient was diagnosed with pulp necrosis and an acute apical abscess.

Canal Transportation, Centering Ability, and Dentin Removal after Instrumentation: A Micro-CT Evaluation.

Aim: The aim of this study is to evaluate and compare root canal transportation, centering ability, and amount of dentin removed after root instrumentation with different rotary and reciprocating systems, using micro-computed tomography (micro-CT).

Materials And Methods: Forty curved mesial canals of lower molars were selected and divided into four experimental groups ( = 10) according to the system used: protaper next (PTN), wave one gold (WOG), prodesign logic (LOG), and vortex blue (VTX). The roots were scanned before and after instrumentation using micro-CT, with a 16 μm isotropic resolution.

Can universal adhesive systems bond to zirconia?

Objective: To measure the bond strength to zirconia subjected to different surface treatments of universal bonding agents.

Materials And Methods: Eighty blocks of zirconia were obtained by CAD/CAM milling. The blocks were embedded into PVC tubes, polished sequentially with increasing granulation sandpapers and divided into two groups according to surface treatment: polished or grit-blasted with alumina particles.

Universal cements: dual activated and chemically activated.

The aim of the present study was to assess the bond strength of universal cements cured either dually or chemically only. Three cements were assessed using different types of application: dual activated (DA) or chemically activated (CA). In total 80 dentin blocks were used, obtained through the enamel wear of the lingual and buccal surfaces of bovine incisors.

Pre-treating dentin with chlorhexadine and CPP-ACP: self-etching and universal adhesive systems.

The aim of the present study was to compare the effect of pre-treating dentin with chlorhexidine, at concentrations of 0.2% and 2%, and remineralizing paste containing CPP-ACP (MI Paste - GC) on the bond strength of adhesive systems. In total, 80 slides of dentin were used.

Cytotoxic effect of inositol hexaphosphate and its Ni(II) complex on human acute leukemia Jurkat T cells.

Inositol hexaphosphate (InsP6) is present in cereals, legumes, nuts and seed oils and is biologically active against some tumor and cancer cells. Herein, this study aimed at evaluating the cellular toxicity, antiproliferative activity and effects on cell cycle progression of free InsP6 and InsP6-Ni(II) of leukemic T (Jurkat) and normal human cells. Treatments with InsP6 at concentrations between 1.