introduction : the aim of this in vitro study was to evaluate the effect of smear layer on the push-out bond strength of white mineral trioxide aggregate (wmta) with and without disodium hydrogen phosphate (na 2 hpo 4 ). materials and methods: dentin discs with standard cavities were obtained from extracted human single-rooted teeth and divided to 4 groups ( n =15) according to the irrigation r...

background: as the use of different irrigants to eliminate residual debris and smear layer in the field of endodontic is unavoidable, by considering the effect of irrigants on the bond strength of resin composite restorations, this study was designed to evaluate the effect of a mixture of a tetracycline isomer, an acid, and a detergent (mtad) on the shear bond strength of two self-etch adhesive...

background: infection with trichomonas vaginalis is one of the most common sexually transmitted diseases (stds) in humans. the prevalence of infection in iran has been reported between 2 to 8%, depending on deferent socio-cultural conditions. this study aimed to determine the prevalence of t . vaginalis in women referred to gynecologic clinics in hamadan city, west of iran. methods: this descri...

I NTRODUCT ION The Er:YAG laser, emitting at 2940 nm, can be a valuable tool for root canal debridement and improved pathogen reduction during endodontic treatment. The ability to successfully negotiate and remove the smear layer and bacteria continues to be a challenge for nonsurgical endodontic treatment in root canal systems. Current instrumentation techniques use both hand and ultrasonic ir...

INTRODUCTION The aim of this in vitro study was to evaluate the effect of smear layer on the push-out bond strength of white mineral trioxide aggregate (WMTA) with and without disodium hydrogen phosphate (Na2HPO4). MATERIALS AND METHODS Dentin discs with standard cavities were obtained from extracted human single-rooted teeth and divided to 4 groups (n=15) according to the irrigation regimen ...

BACKGROUND The present study aimed to determine the prevalence and associated risk factors of vaginal trichomoniasis in women referred to gynecologic clinic in Benha University Hospital, Egypt. METHODS Two hundred female patients enrolled in the study. Vaginal samples were obtained from them and examined for T. vaginalis by wet mount, Giemsa stain, Acridine orange (AO) stain and culture on mo...

BACKGROUND Infection with Trichomonas vaginalis is one of the most common sexually transmitted diseases (STDs) in humans. The prevalence of infection in Iran has been reported between 2 to 8%, depending on deferent socio-cultural conditions. This study aimed to determine the prevalence of T. vaginalis in women referred to gynecologic clinics in Hamadan city, West of Iran. METHODS This descrip...

In waterjet and laser milling, material is removed from a solid surface in a succession of layers to create a new shape, in a depth-controlled manner. The inverse problem consists of defining the control parameters, in particular, the two-dimensional beam path, to arrive at a prescribed freeform surface. Waterjet milling (WJM) and pulsed laser ablation (PLA) are studied in this paper, since a g...

background: the present study aimed to determine the prevalence and associated risk factors of vaginal trichomoniasis in women referred to gynecologic clinic in benha university hospital, egypt. methods: two hundred female patients enrolled in the study. vaginal samples were obtained from them and examined for t. vaginalis by wet mount, giemsa stain, acridine orange (ao) stain and culture on mo...