Control Of Bacterial Contamination
Mostrando 1-12 de 73 artigos, teses e dissertações.
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1. Análise da desinfecção apical do canal radicular preparado em três diferentes comprimentos de trabalho, utilizando movimento rotatório contínuo ou reciprocante e duas substâncias irrigadoras: estudo in vitro
Resumo Introdução O preparo do canal radicular, em especial o terço apical, é fundamental para o sucesso da terapia endodôntica, pois abriga o forame radicular, local que comunica o endodonto com os tecidos perirradiculares. Objetivo A presente pesquisa avaliou a contaminação do terço apical após a instrumentação de canais radiculares em três c
Rev. odontol. UNESP. Publicado em: 24/10/2019
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2. Efficacy of removal of cariogenic bacteria and carious dentin by ablation using different modes of Er:YAG lasers
The primary objective of this in vitro study was to evaluate the efficiency of removal of cariogenic bacteria and carious dentin by ablation using two lasers: fluorescence-feedback controlled (FFC) Er:YAG laser and different pulses of Er:YAG laser based on variable square pulse technology (VSPt). The secondary objective was to measure the temperature during
Braz J Med Biol Res. Publicado em: 11/01/2018
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3. Evaluation of toothbrush disinfection via different methods
The aim of this study was to compare the efficacy of using a dishwasher or different chemical agents, including 0.12% chlorhexidine gluconate, 2% sodium hypochlorite (NaOCl), a mouthrinse containing essential oils and alcohol, and 50% white vinegar, for toothbrush disinfection. Sixty volunteers were divided into five experimental groups and one control group
Braz. oral res.. Publicado em: 15/12/2015
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4. Influence of antimicrobial solutions in the decontamination and adhesion of glass-fiber posts to root canals
AbstractObjective This study evaluated the effect of root canal disinfectants on the elimination of bacteria from the root canals, as well as their effect on glass-fiber posts bond strength.Material and Methods Fifty-three endodontically treated root canals had post spaces of 11 mm in length prepared and contaminated with E. faecalis. For CFU/ml analysis, ei
J. Appl. Oral Sci.. Publicado em: 2015-08
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5. Green and brown propolis: efficient natural biocides for the control of bacterial contamination of alcoholic fermentation of distilled beverage
This study aimed to evaluate the efficiency of natural biocides, brown and green propolis, for the control of bacterial contamination in the production of sugarcane spirit. The treatments consisted of brown and green propolis extracts, ampicillin, and a control and were assessed at the beginning and end of harvest season in ten fermentation cycles. In the mi
Food Sci. Technol. Publicado em: 2014-12
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6. Chemical inhibition of the contaminant Lactobacillus fermentum from distilleries producing fuel bioethanol
The purpose of this study was to determine the Minimum Inhibitory Concentration (MIC) of pure or mixed chemicals for Saccharomyces cerevisiae and Lactobacillus fermentum in the samples isolated from distilleries with serious bacterial contamination problems. The biocides, which showed the best results were: 3,4,4' trichlorocarbanilide (TCC), tested at pH 4.0
Braz. arch. biol. technol.. Publicado em: 2014-06
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7. Bacterial microleakage at the implant-abutment interface in Morse taper implants
AIM: To evaluate the microleakage at the implant-abutment (I-A) interface of Morse tapered implants inoculated with different volumes of bacterial suspension. METHODS: Morse tapered I-A sets were selected and divided in two groups depending on the type of abutment: passing screw (PS) and solid (S), and then subdivided into four subgroups (n=6) accordin
Braz. J. Oral Sci.. Publicado em: 2014-04
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8. Mycological contamination in dental unit waterlines in Istanbul, Turkey
Studies on dental units (DUs) are conducted either for the prevention or the reduction of the density of bacterial contamination in dental unit waterlines (DUWLs). However, the existence of fungi in the these systems requires more attention. During dental treatment, direct contact with water contaminated with fungi such as Candida, Aspergillus, or inhalation
Braz. J. Microbiol.. Publicado em: 2013-09
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9. Antimicrobial effect of turmeric (Curcuma longa) on chicken breast meat contamination
The aim of this study was to evaluate the efficacy of turmeric (Curcuma longa), also known in Brazil as saffron, on the reduction of Staphylococcus aureus and Escherichia coli counts in chicken meat. Forty breast meat samples were divided in two groups (A and B). In group A, 10³-10(4)E. coli (ATCC 25922) cells were inoculated and group B samples were inocul
Rev. Bras. Cienc. Avic.. Publicado em: 2013-06
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10. Ardra profiles of bacteria and archaea in mangrove sediments with different levels of contamination in the estuarine complex of Paranaguá, Brazil
The mangrove's sediments from the coastal areas under human activities may contain significant contaminations by hydrocarbons, even when there are no visual evidences of it. The microorganisms are essential to these ecosystems, especially in the control of their chemical environment. Sediment samples were collected in two regions under different environment
Braz. arch. biol. technol.. Publicado em: 2013-04
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11. Desinfestação e estabelecimento in vitro de segmentos caulinares de camu-camuzeiro / Disinfestation and in vitro establishment of stem segments of camu-camu tree
The camu-camu tree (Myrciaria dubia (H.B.K.) McVaugh) is a fruit-bearing species belonging to the family Myrtaceae of spontaneous occurrence on the banks of rivers and lakes of Amazonia. It presents economic potential, since its fruits are thought the greatest natural source of vitamin C, bordering 6,112g of ascorbic acid per 100 g of pulp, arising commercia
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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12. PARÂMETROS IMUNOLÓGICOS FRENTE À CONTAMINAÇÃO POR SALMONELLA ENTERITIDIS EM AVES TRATADAS E NÃO TRATADAS COM ÁCIDOS ORGÂNICOS E SUA DETECÇÃO POR MÉTODOS FENOTÍPICOS E GENOTÍPICOS / IMMUNOLOGICAL PARAMETERS IN THE CONTAMINATION BY SALMONELLA ENTERITIDIS IN POULTRY TREATED AND NOT TREATED WITH ORGANIC ACIDS AND THEIR DETECTION BY PHENOTYPIC AND GENOTYPIC METHODS
Salmonellosis is a public health problem that involves issues in animal health and food handling practices that require combined actions to minimize its effects. This disease is a zoonosis with the greatest impact on public health throughout the world due to: high endemicity, high mortality and especially by its difficult to control and the development of an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/11/2011