To compare the removal of biofilm utilizing four irrigation techniques on a bovine root canal model.Fifty dentine specimens (2 × 2 mm) were infected with biofilm. The samples then adapted to previously created cavities in model. canals irrigated twice mL 6% sodium hypochlorite for min (4 total). Following initial irrigation, different treatment modalities introduced 60 s (3 20 intervals). evaluated needle Endoactivator (Dentsply Tulsa Dental, Tulsa, OK, USA), passive ultrasonic and...

Abstract A novel coaxial tubular device capable of generating a 2.5 cm long pencil‐like plasma plume in ambient atmosphere has recently been developed to disinfect root canal systems during endodontic treatment. Powered with short (≈100 ns), intense (6 kV) electric pulses at 1 kHz, the dental probe is safe for operation, electromagnetic noise‐free, low power consumption (an average ≈1 W) and minimal heating materials under It thus essential features required oral disinfection. In this...

To evaluate the shaping ability of Reciproc and Twisted-File Adaptive systems in rapid prototyping replicas.Two mandibular molars showing S-shaped 62-degree curvatures mesial root were scanned by using a microcomputed tomography (μCT) system. The data exported stereolitograhic format 20 samples each molar printed at 16 µm resolution. canals 10 replicas specimen prepared with Transportation was measured overlapping radiographs taken before after preparation resin thickness instrumentation...

Summary Scanning electron microscopy is a useful imaging approach for the visualization of bacterial biofilms in their natural environments including medical and dental habitats, because it allows exploration large surfaces with excellent resolution topographic features. Most nature, however, are embedded thick layer extracellular matrix that prevents clear identification individual bacteria by scanning microscopy. The use confocal laser on other hand combination fluorescence situ...

Recently single-cone hydraulic canal filling technique using bioceramic sealers brought a difficulty of retreatment due to the mechanical properties sealers. This study assessed effectiveness four nickel-titanium rotary files in removing gutta-percha and sealer from molar root canals vitro. Eighty-eight extracted molars were instrumented with Vortex Blue filled technique. After 30 days, randomly divided into groups according file used for re-instrumentation: ProTaper Gold (PTG), Endo ReStart...

Pulp tissue debridement and eradication of microorganisms from an infected root canal system before obturation is a primary focus endodontic treatment the best predictor for long-term success treatment. The purpose this in vitro laboratory study was to evaluate pulp disinfection efficacy two different Er;Cr:YSGG laser units, with 2790 nm wavelength, compared Ultrasonic Activated Irrigation (UAI) canals Enterococcus faecalis. laser-activated irrigation protocols showed multiple areas...

Objective: To investigate the tissue dissolution efficacy of different concentrations sodium hypochlorite (NaOCl) using GentleWave® technology (GW) and compare it with that passive ultrasonic irrigation. This study will provide a novel in vitro model used to evaluate NaOCl procedure. Materials Methods: Palatal bovine was standardized by weight at 70–75 mg (average 74.4 mg). The samples were divided into three groups n = 10, Group 1: GW + 0.5% NaOCl, 2: 3% 3: group (US) 6% control 2 H2O. A...

Recently, the single-cone hydraulic canal filling technique using bioceramic sealers was found to hinder retreatment due mechanical properties of sealers. This study assessed effectiveness four nickel–titanium rotary files in removing gutta-percha and sealer from molar root canals vitro. Eighty-eight extracted molars were instrumented with Vortex Blue filled a technique. After 30 days, randomly divided into groups according file used for re-instrumentation: ProTaper Gold (PTG), Endo ReStart...

A new plasma dental probe (PDP), powered with 4-6-kV ~100-ns electric pulses at repetition rates of up to 2 kHz, generates a room-temperature > 2-cm-long ~2-mm-diameter plume ambient atmospheric pressure. The shape the depends on gas flow rate and pulse voltage. Growth Bacillus atrophaeus nutrient agar plates is completely inhibited by exposure both He He/(1%)O2 plasmas for 60 s. 300-s treatment disinfected human tooth root canal colonized saliva-derived biofilms, demonstrating potential PDP...

To evaluate the efficacy of a nonthermal plasma (NTP) at atmospheric pressure on ex vivo biofilm in root canals extracted teeth.Intracanal contents from three teeth with canal infections were collected, pooled and grown thirty-five microCT-mapped instrumented human teeth. One group was treated NTP, another 6% NaOCl one set left untreated. The intracanal twenty-seven (nine each group) plated agar colony forming units determined. Parametric test one-way analysis variance (anova) used to...

CT diagnosis of primary small-bowel volvulusD Jaramillo and B RavalAudio Available | Share

The hypothesis that a cold plasma jet has the antimicrobial effect against Enterococcus faecalis biofilms was tested in vitro. 27 hydroxyapatite discs were incubated with E. for six days to form monoculture biofilm on disc surface. prepared substrata divided into three groups: negative control, positive control (5.25% NaOCl solution), and treatment group. Resultant colony-forming unit counts associated observations of bacterial cell morphology changes using scanning electron microscopy...

The aim was to assess the effect of XP-endo Finisher (XPF) on multispecies biofilm removal, in comparison with passive ultrasonic irrigation (PUI) and conventional syringe (CSI), by scanning electron microscope (SEM). Fifty mandibular first premolars were instrumented, longitudinally sectioned. split halves incubated for 4 days a broth obtained from three bacteria strains: Enterococcus faecalis, Eikenella corrodens Streptococcus anginosus. Subsequently, re-approximated irrigated 4% sodium...

Abstract Background The purpose of this study was to assess the antimicrobial effect a buffered 0.5 % sodium hypochlorite solution activated by photon-induced photoacoustic streaming compared conventional irrigation. Methods canals on 48 single canal lower bicuspids were cleaned and shaped using rotary instrumentation. All roots autoclaved for 20 min. Thirty-six placed in glass flasks with blood heart infusion media Enterococcus faecalis (ATCC 4082) 4 weeks. remaining 12 sterile environment...

Abstract Cutting efficiency of Reciproc R25 (REC) and blue (REB) at different inclinations was evaluated. Sixty new files were tested 90°, 70° 45° inclination in relation to the sample ( n = 10), using a customised machine. All activated reciprocation against standardised gypsum blocks for 120 s. determined by measuring block weight loss with an analytical balance length surface cut digital calliper. Data statistically analysed (two‐way ANOVA, Bonferroni t‐test) significance level set P <...