UNLABELLED Cefoxitin is a potent inducer of the mecA regulatory system. It is being recommended for detection of methicillin resistance in Staphylococcus aureus (MRSA) when using disk diffusion testing. The aim of our study was to evaluate the efficacy of cefoxitin disc diffusion test to characterize MRSA and compare it with oxacillin agar screening and detection of mecA gene by PCR. MATERIAL...

IntroductionNumerous studies have sought to quantify the biomechanical effects of posterior spinal fusion and disc arthroplasty; however, the results from these studies are conflicting. Additionally, the variety of techniques utilized during biomechanical testing complicates comparing results of instrumentation studies. Two distinct methods of experimental loading protocols have emerged to test...

Background and Aim: The complications of unwanted surface roughness of composite restorations are highly common due to the increasing use of this restorative material. Therefore, the present study was designed to compare the effect of four finishing and polishing (F&P) tools on surface roughness of microhybrid resin composites. Materials and Methods: This experimental study was performed on 42...

background :    pseudomonas aeruginosa is a severe challenge for antimicrobial therapy, because of chromosomal mutations or exhibition of intrinsic resistance to various antimicrobial agents such as most β-lactams. we undertook this study to evaluate the existence of sme, aim and vim metallo-beta lactamases encoding genes among p. aeruginosa strains isolated from icu patients in al-zahra hospit...

OBJECTIVES This study aimed to evaluate the effects of chlorhexidine mouthrinses on color stability of nanofilled and micro-hybrid resin-based composites. MATERIALS AND METHODS In this in-vitro study, 160 disc-shaped specimens (7x2mm) were fabricated of Filtek Z250 and Filtek Z350XT Enamel (A2 shade). The samples of each group were randomly divided into eight subgroups (n=10). The specimens w...

BACKGROUND The validation of widely used scales facilitates the comparison across international patient samples. The objective of this study was to translate, culturally adapt and validate the Simple Shoulder Test into Brazilian Portuguese. Also we test the stability of factor analysis across different cultures. OBJECTIVE The objective of this study was to translate, culturally adapt and vali...

OBJECTIVE The Rey Auditory-Verbal Learning Test, which is used to evaluate learning and memory, is a widely recognized tool in the general literature on neuropsychology. This paper aims at presenting the performance of Brazilian adult subjects on the Rey Auditory-Verbal Learning Test, and was written after we published a previous study on the performance of Brazilian elderly subjects on this sa...