introduction: the provision of an effective apical seal is an essential factor when choosing an appropriate material for success of root-end surgeries. root-end resection, preparation and obturation should provide an adequate apical seal. the aim of this in vitro study was to investigate bacterial and dye microleakage of four different root-end filling materials and compare the efficacy of thes...

different strains of escherichia coli (e. coli) from human, chickens, and the common strain between human and chickens were isolated and typed with mono-specific antibody. the e. coli strains from each group of human, chicken and common between human and chicken were selected. the polypeptide patterns of selected strains were analyzed and compared with each other by sodium dodecyle sulphate pol...

background : this study investigated the in vitro and in vivo antibacterial effects of three mouthwashes on su-pragingival plaque microbiota. the three mouthwashes under study were 0.2% chlorhexidine (chx), listerine®, and persica (pm). water was used as negative control. methods : supragingival plaque samples were collected from 32 patients with gingivitis in the dental school of shahid behesh...

background and objectives: survey on bacterial contamination is one of the most important ways for hygienic evaluation of meats at different points of processing and marketing. in the last decade application of ozone as an antiseptic agent was proposed in foods (meats, vegetables, fruits, etc.) processing. the aim of this study was to evaluate the effects of ozone gas for reduction of bacterial...

background meningitis is an inflammation of the membranes, which surround the brain and spinal cord. early treatment of bacterial meningitis can prevent serious complications. in the last two decades, three vaccines have been developed against the three main bacterial species implicated in meningitis of children in western countries and vaccine-preventable invasive bacterial meningitis has decr...

conclusions preliminary results indicate that the native iranian actinobacteria could be considered a suitable option for screening of the new antibacterial compounds. molecular research and antibacterial compound extraction against the aforementioned pathogenic strains are also being conducted. results based on the morphological characterization, 35 isolated cases belonged to actinomycetes and...

glycyrrhiza glabra,  family leguminoseae, is a plant which grows  in egypt and  other  countries  of  the world.  its  roots  possess  some  nutritive  value and medicinal properties. glycyrrhiza glabra linn, a commonly used herb in ayurvedic medicine. studies indicate that glycyrrhiza glabra linn possesses antibacterial, antioxidant, antimalerial, antispasmodic, anti-inflammatory and anti hype...

introduction: careful planning on health care may prevent the spread of disease and reduce the expense for treatment. regarding the importance of health care in the clinical centers including physiotherapy clinics, this study was designed to investigate the rate of bacterial contamination of electrotherapy’s pads which use in the physiotherapy clinics of semnan university of medical sciences (i...

objective(s): klebsiella infections are caused mainly by k. pneumoniae and k. oxytoca. in the last two decades, a new type of invasive klebsiella pneumoniae which contains mucoviscosity-associated gene (maga) has emerged. the aim of this study was to investigate the prevalence of maga gene and to detect antimicrobial susceptibility patterns of klebsiella   spp. isolated from clinical samples.  ...