Abstract Aim To assess and compare the amount of extruded debris after canal preparation using ProTaper Universal Next files. Methodology Forty extracted mandibular premolars with single canals similar lengths were instrumented F3 or X3. The during instrumentation was collected into pre‐weighed Eppendorf tubes. tubes stored in an incubator for 5 days. weighed to obtain final dry weight debris. apically calculated by subtracting initial tube from weight. distribution data examined...

Postoperative pain is a frequent complication associated with root canal treatment, especially during apical instrumentation of tooth preexisting periradicular inflammation Objectives The aim this clinical study was to evaluate the influence techniques on incidence and intensity postoperative in single-visit treatment. Material Methods Ninety patients single root/canal non-vital pulps were included. assigned into 3 groups according technique used; modified step-back, reciprocal, rotational...

ABSTRACT Objectives: The aim of this study was to evaluate the effectiveness three different antiseptic mouthrinse solutions on saliva samples obtained from individuals, who had high caries activity rate. Methods: efficacy mouthrinses were evaluated in a with healthy volunteers. used 0.1% octenidine dihydrochloride (Octenisept, Schülke&Mayr, UK), 0.12% chlorhexidine digluconate (Kloroben, Drogsan, Turkey) and an antimicrobial enzymatic rinse (Biotene, Laclede,Inc, USA). A total 27 adult...

Summary The aim of this study was to evaluate the dentinal microcrack formation ProTaper Universal, Next, and WaveOne. Sixty extracted mandibular molars were selected. mesial roots resected randomly divided into four groups (n = 15). canals prepared with hand files (group 1), Universal 2), Next 3), WaveOne 4) instrument systems. separated horizontally at 3, 6, 9 mm from apex. Digital images captured ×40 magnification using scanning electron microscopy detect formation. Statistical analysis...

To evaluate the amount of apically extruded debris after root canal instrumentation with ProTaper Next and HyFlex instruments in curved canals.Forty extracted mandibular first molar teeth mesial roots similar lengths were instrumented using or instruments. The was collected into pre-weighed Eppendorf tubes. tubes stored an incubator at 68 °C for 5 days. weighed to obtain final dry weight debris. determined by subtracting initial from weight. Distribution data Shapiro-Wilk test. Continuous...

Abstract The aim of this study was to compare the root filling material that remained after retreatment curved canals with chloroform and E ndosolv R as solvents. evaluation employed micro‐computed tomography ( CT ) imaging. Thirty‐six extracted molar teeth roots were selected. After preparation ProTaper rotary instruments, filled gutta‐percha AH26 sealer. randomly divided into three groups according solvent used n = 12) follows: group 1: chloroform; 2: ; 3: no (negative control). P ro T...

Abstract To compare the penetration of Ah Plus and MTA Fillapex after irrigation activation with sonic, passive ultrasonic, SWEEPS XP‐Endo Finisher using confocal microscopy. Instrumented root canals 160 mandibular premolar teeth were allocated randomly to four groups ( n = 40/group) eight subgroups according techniques canal sealers 20/subgroup). After obturation, three sections at 1–2, 5–6 9–10 mm levels from apex examined. Penetration area maximum depth values represented as mean standard...

Abstract To evaluate the influence of passive ultrasonic irrigation (PUI) to remove smear layer with different solutions. Seventy‐eight single rooted mandibular premolars were used. The working lengths measured and root canals prepared by using nickel titanium rotary files. specimens subjected six regimens: sodium hypochloride (NaOCl) classic (CI); NaOCl PUI; EDTA CI; QMix PUI. split longitudinally. Scanning electron microscopy images taken amount residual scored. Statistical analysis was...

Background. This study aimed to compare the cyclic fatigue resistance of ProTaper Next, Hyflex CM, 2Shape, and TF-Adaptive nickel-titanium endodontic file systems with various alloy properties production methods investigate fractured cross-sectional surface files due by scanning electron microscopy (SEM). Methods. A total 120 instruments were used (n=30). For standardization, #25/.06 apical diameter taper angle selected for each system. The experiment was subjected a static model. time...

Abstract The aim of this study was to compare the amount apically extruded debris during root canal instrumentation using ProTaper Next (PTN), Twisted File (TF) Adaptive, and Reciproc instruments. Forty-five extracted human maxillary canines were selected randomly assigned into 3 groups. canals prepared PTN instruments with continuous rotation (n=15), TF Adaptive adaptive motion reciprocating (n=15). During preparations, irrigated distilled water material collected in pre-weighed Eppendorf...

The aim of this study was to evaluate the effects sodium hypochlorite (NaOCl), chlorhexidine digluconate (CHX), and mixture tetracycline, citric acid, detergent (MTAD) solutions on surfaces nickel titanium (NiTi) rotary files with scanning electron microscopy (SEM) atomic force (AFM). Irrigation including 2.5% NaOCl, 5% 2% CHX, MTAD were used. Four new ProTaper NiTi (F3) immersed in each four irrigation for 10 min, separately. One untreated file used as a control specimen. surface analysis...

The aim of this study was to evaluate the effect glide path preparation on surface topography changes WaveOne and OneShape single files using atomic force microscopy analysis. Two commercially available brands file systems were analyzed, including 15 specimens/brand as following: Group I; 0.08/25 (Dentsply Maillefer, Ballaigues, Switzerland) II; 0.06/25 (Micro Mega, Besançon, France). In each group, 3 new subjected AFM analysis received from manufacturer, 12 analyzed after root canals. A...

The aim of this study was to assess the apical sealing ability different core materials used with Epiphany(TM) sealer and evaluate effect Resilon/Epiphany(TM) system on creating an mono-block seal.Fifty-five extracted human teeth were used. Forty-five selected randomly divided into three groups ten as positive negative control groups. In Group 1, roots obturated using Resilon Epiphany, 2, tapered single-cone gutta-percha Epiphany in 3, Thermafil obturators sealer. leakage measured dye...

Abstract – This case report describes the treatment of a horizontal mid‐root‐fractured incisor with an alternative fixation technique. As result clinical signs pulpal necrosis, both coronal and apical root fragments were endodontically treated obturated at single visit, stabilized internally through insertion stainless‐steel endodontic file into canal. Four‐year follow‐up examination revealed satisfactory radiographic findings hard tissue repair fracture line. technique can be quick remedy...

ABSTRACT Aim To determine the possible residual antibacterial effects and surface changes caused by 5.25% NaOCl, 2.5% 2% CHX 0.05% Octenisept on in vitro gutta-percha points after different disinfection protocols. Materials methods A total of 121 standard # 40, 0.2% cones were cut 10 mm from tip, sterilized with ethylene oxide. The samples divided into five groups, each group was three subgroups according to immersion periods solutions. One cone selected for SEM evaluation. Results All...

The aim of this study was to compare the efficacy QMiX and ethylenediaminetetraacetic acid (EDTA) solutions with diode laser treatment in smear layer removal.Removing from apical thirds root canals is difficult, regardless solution used. Researchers have been improved some irrigation agitation methods overcome challenge, irrigants devices has become popular.Seventy-five extracted mandibular premolars were After were, prepared specimens divided into five groups (n = 15): Group 1, no...

Summary The aim of this study was to compare in vitro reduction Enterococcus faecalis by using three agitation methods. Fifty‐five mandibular premolar teeth were used. root canals prepared ProTaper instruments size F4. Fresh bacterial suspensions inoculated into each canal and the incubated at 37°C under aerobic conditions for 3 weeks. specimens negative control group not contaminated positive receive no further instrumentation or irrigation after contamination. divided experimental groups...

The aim of this study was to evaluate the color and enamel structure changes after intracoronal bleaching with sodium perborate under neodymium:yttrium-aluminum-garnet (Nd:YAG) diode laser irradiation.Although some studies investigated efficacy irradiation during bleaching, no has been conducted investigate in both irradiation.Thirty-six extracted mandibular incisors were used. root canals prepared filled AH Plus gutta-percha. Baseline values Raman spectra obtained from all samples. samples...

Introduction The purpose of this study was to compare the occurrence microcracks in teeth prepared with different retreatment systems using microcomputed tomography (micro-CT). Methods Forty-two freshly extracted mandibular premolar were used. root canals instrumented stainless steel K-files an apical size 35/.02 balanced-force technique and obturated passive compaction technique. specimens divided into 3 experimental groups according system used (n = 14): ProTaper Universal (PTUR), Mtwo...

Abstract The aim of this clinical study was to test the efficacy a light‐emitting diode ( LED ) light and laser, when bleaching with sodium perborate. Thirty volunteers were selected participate in study. patients randomly divided into two groups. initial colour each tooth be bleached quantified spectrophotometer. In group A, perborate distilled water mixed placed pulp chamber, source applied. B , same mixture used, 810 nm laser final Initial spectrophotometer values recorded. Mann–Whitney U...