introduction: the aim of this study was to verify the effect of alternating 2.5% sodium hypochlorite (naocl) and 17% ethylenediaminetetraacetic acid (edta) on the smear layer removal from root canal surfaces. methods and materials: a total of 15 single-rooted human teeth, instrumented with protaper files, were randomly distributed in 3 groups. in group 1 ( n =7) the canals were irrigated with 1...

introduction: in this experimental study, the amount of smear layer (sl) remnants in curved root canals after chemomechanical instrumentation with two engine-driven systems or hand instrumentation was evaluated. methods and materials: forty-eight mesiobuccal roots of mandibular first molars with curvatures ranging between 25 and 35 degrees (according to schneider’s method) were divided into thr...

Background: The main factors that affect the success of an endodontic infection are effective cleaning and shaping root canal system including complete disinfection by using chemical irrigating solutions obturation with sealer to provide a fluid-tight seal. Using rotary hand instruments for along irrigants produces smear layer on surface dentin affecting penetration ...

using ultrasonic devices in endodontics can enhance the antibacterial and tissue dissolving ability of different root canal irrigants such as sodium hypochlorite (naocl) which is the most common irrigant with excellent antibacterial and tissue dissolving abilities. however, due to its high surface tension, its penetration into the irregularities of the root canal system is a challenge. the purp...

background pain experience makes a serious anxiety for both patient and clinician before and after root canal treatment. pain is a complex psychophysiologic phenomenon. objectives the aim of this randomized control trial study was to evaluate the analgesic effect of odontopaste® and a corticosteroid containing compound medicament between root canal therapy appointments. materials and methods on...

introduction: the purpose of this in vitro study was to assess the antifungal activity of final canal rinse with either three concentrations of sodium hypochlorite (naocl) (0.5, 2.6 and 6%), two concentrations of chlorhexidine (chx) (2% and 0.2%), mtad, tetraclean, hypoclean and chlor-xtra on candida albicans (c. albicans ) in a human tooth model. methods and materials: two hundred and thirty f...

objectives: biomechanical preparation and irrigation with antimicrobial solutions are necessary to disinfect the root canal space. this in vitro study aimed to examine the antifungal effect of green tea extract on candida albicans biofilm formed on tooth substrate. materials and methods: minimum fungicidal concentration (mfc) and minimum inhibitory concentration at which 90% of the isolates wer...