Bactericidal activities of six commonly used disinfectants against scven different species of clinically isolatcd hacteria, mainly glucose-nonfermentative Gram-negative hacilli, were compared. In terms of mean values of the minimum hactericidal concentration (M BC), henzethonium chloride showed the highest efficacy, followed in order hy chlorhexidine gluconate, alkyldiaminoethylglycine hydrochl...

High concentrations of water-borne organisms cause multiple public health problems. Contamination of water exiting the dental unit water lines could be inhibited with the use of some disinfectants. The purpose of this investigation was to establish the effect of two disinfectants and to test their capacity to eliminate colony forming units (CFU) per mL. Vacuum lines of four chairs were treated ...

BACKGROUND The objective of this study was to compare the efficiency of four commonly used chemicals in their ability to remove smear layer after instrumentation using scanning electron microscope (SEM). MATERIALS AND METHODS Seventy-five extracted single canaled teeth of roots ranging 10-12 mm in length were used for the study. Teeth were divided into 4 study groups and 1 control group of 15...

MIC-tests in replicate were performed on 286 Salmonella isolates (269 from Danish poultry, including 256 from broiler houses, and 17 from England, mainly from poultry) against five disinfectants used in the poultry industry (glutaraldehyde/benzalkonium chloride compound, formaldehyde, oxidising compound, tar oil phenol, iodophor). Generally, the small variations in MIC could not be associated w...

Virucidal efficacy was evaluated for four recently available disinfectants: chlorine dioxide, potassium peroxymonosulfate, a quaternary ammonium compound, and citricidal (grapefruit extract). Sodium hypochlorite (3%) and tap water were used as positive and negative controls respectively. Feline herpesvirus, feline calicivirus, and feline parvovirus were exposed to the manufacturers' recommended...

Freedom from microbial and foreign body contamination is essential in food production, and the principal means for controlling the surface route of contamination is sanitation (cleaning and disinfection). After the cleaning phase, disinfection plays a crucial role in further reducing microbial numbers and viability. However, disinfectants for use in the food industry may contaminate the product...

conclusions within the limitations of this study, disinfectants were able to completely eliminate microorganisms carried by the alginate impressions. however, more efficient disinfection methods are needed to eliminate the risk of cross contamination by condensational silicone impressions. background dental impressions often carry microorganisms that may cause cross-infection from patients to d...

Exposure to some nonallergenic compounds has been shown to increase the risk of atopic sensitization and asthmatic symptoms. In order to gain more insight into the largely unknown aetiology of respiratory symptoms in pig farmers, we studied the role of nonallergic exposure. We evaluated associations between chronic respiratory symptoms, specific and total serum immunoglobulin E (IgE) levels, us...

BACKGROUND Among other measures, handwashing and targeted disinfection are important in preventing and controlling norovirus outbreaks. Presently, there are a limited number of disinfectants effective against norovirus. There is a need to develop alternatives to bleach that are effective against norovirus, and, in particular, fast-acting disinfectants are desired. The aim of this study was to d...