Nonsurgical management of type II dens invaginatus with cone beam computed tomography: A rare case.

Dens invaginatus is a progressive abnormality resulting from invagination of the crown or root before calcification. This case report presents nonsurgical endodontic treatment and nine-year follow-up results of a right maxillary canine tooth with type II dens invaginatus. A 40-year-old female patient was referred to the clinic for treatment of her maxillary right canine tooth.

A Novel Technique for Identification of Wear Values at Different Lengths after Multiple Clinical Use of Different File Systems.

The purpose of this research is to assess the wearing of the rotary file system (Protaper Next) and reciprocating file systems (Reciproc Blue and WaveOne Gold) at different lengths using a novel technique after in vivo clinical use. Twelve different unused samples from each brand were accepted as reference values. For three different brands, the diameters of the files were measured by taking 12 samples used once, 12 samples used twice, and 12 samples used three times.

Effect of Mineral Trioxide Aggregate Apical Plug Thickness on Fracture Resistance of Immature Teeth.

Introduction: The aim of this study was to compare the fracture resistance of simulated immature teeth after using different thicknesses of mineral trioxide aggregate (MTA) apical plugs.

Methods: Fifty-two human maxillary anterior teeth were used. Five teeth were the positive control group; they were prepared using Peeso reamers to simulate immature teeth without any access cavity preparation.

Effect of retreatment instruments on microcrack formation: a microcomputed tomography study.

Introduction: The purpose of this study was to compare the occurrence of microcracks in teeth prepared with different retreatment systems using microcomputed tomography (micro-CT).

Methods: Forty-two freshly extracted mandibular premolar teeth were used. The root canals were instrumented with stainless steel K-files to an apical size of 35/.

Postoperative pain intensity after using different instrumentation techniques: a randomized clinical study.

Objectives: The aim of this clinical study was to evaluate the influence of the instrumentation techniques on the incidence and intensity of postoperative pain in single-visit root canal treatment.

Material And Methods: Ninety patients with single root/canal and non-vital pulps were included. The patients were assigned into 3 groups according to root canal instrumentation technique used; modified step-back, reciprocal, and rotational techniques.

Influence of passive ultrasonic irrigation on the efficiency of various irrigation solutions in removing smear layer: a scanning electron microscope study.

To evaluate the influence of passive ultrasonic irrigation (PUI) to remove the smear layer with different irrigation solutions. Seventy-eight single rooted mandibular premolars were used. The working lengths were measured and the root canals were prepared by using nickel titanium rotary files.

Apical transportation during removal of root canal filling with different retreatment systems.

Introduction: This study aimed to compare apical transportation during retreatment using ProTaper Universal retreatment (PTUR), Mtwo R and D-RaCe instruments in curved root canals.

Methods: 36 extracted mandibular molar teeth with curved mesiobuccal roots were selected. The teeth were embedded into acrylic blocks.

Comparison of the amount of apical debris extrusion associated with different retreatment systems and supplementary file application during retreatment process.

Background: The type of instrument affects the amount of debris extruded. The aim of this study was to compare the effect of retreatment systems and supplementary file application on the amount of apical debris extrusion.

Materials And Methods: Forty-eight extracted mandibular premolars with a single canal and similar length were selected.

Comparison of treatment choices among endodontists, postgraduate students, undergraduate students and general dentists for endodontically treated teeth.

Objectives: To compare the decision-making choices among Turkish dentists with different educational backgrounds.

Methods: Eighty endodontically treated teeth were selected from the authors' private archives and placed into four case groups of equal size: case-group 1, symptom/periapical lesion (n = 20); case-group 2, symptom/no periapical lesion (n = 20); case-group 3, no symptom/periapical lesion (n = 20); and case-group 4, no symptom/no periapical lesion (n = 20). The respective periapical radiograph of each tooth was scanned and, together with a leaflet containing relevant information, was distributed to the participants.

Comparison of apically extruded debris associated with several nickel-titanium systems after determining working length by apex locator.

Background/aim: To compare apically extruded debris using ProTaper Universal (PTU), ProTaper Next (PTN), WaveOne (WO), Twisted File (TF), M-Two (MT), and Revo-S (RS) after determining the working length (WL) with root ZX.

Materials And Methods: Seventy-two teeth were selected. The WL determination was performed with root ZX.

Comparing the Effect of Different Voxel Resolutions for Assessment of Vertical Root Fracture of Permanent Teeth.

Background: The teeth with undiagnosed vertical root fractures (VRFs) are likely to receive endodontic treatment or retreatment, leading to frustration and inappropriate endodontic therapies. Moreover, many cases of VRFs cannot be diagnosed definitively until the extraction of tooth.

Objectives: This study aimed to assess the use of different voxel resolutions of two different cone beam computerized tomography (CBCT) units in the detection VRFs in vitro.

Influence of diode laser application on the efficiency of QMiX and EDTA solutions in removing smear layer.

Objective: The aim of this study was to compare the efficacy of QMiX and ethylenediaminetetraacetic acid (EDTA) solutions with diode laser treatment in smear layer removal.

Background Data: Removing the smear layer from the apical thirds of root canals is difficult, regardless of the solution used. Researchers have been improved some irrigation agitation methods to overcome this challenge, and agitation of irrigants with laser devices has become popular.

Power Hydrogen Evaluation of Apexification Materials: EndoCal 10, Mineral Trioxide Aggregate and Calasept Plus.

Aim: The present study was to evaluate pH values of apexification materials.

Materials And Methods: The materials were placed in 1 cm long and 4 mm diameter tubes. After sample immersion, glass flasks were hermetically sealed with rubber caps to attenuate any effects of external environmental factors and maintained at 37°C.

Comparison of the Resistance of Teeth Instrumented with Different Nickel-Titanium Systems to Vertical Root Fracture: An In Vitro Study.

Introduction: This study compared the fracture resistance of teeth instrumented with ProTaper Universal (Dentsply Maillefer, Ballaigues, Switzerland), ProTaper Next (PTN, Dentsply Maillefer), WaveOne (Dentsply Maillefer), Twisted File (SybronEndo, Orange, CA), Mtwo (MT; VDW, München, Germany), and Revo-S (MicroMega, Besançon, France) nickel-titanium systems and obturated with compatible gutta-percha cones of finishing files using the single-cone technique and a resin sealer.

Methods: The study included 72 mandibular premolar teeth. The roots were covered with additive silicone and placed in Eppendorf tubes, which were filled with a self-curing acrylic.

The effect of the temperature changes of EDTA and MTAD on the removal of the smear layer: a scanning electron microscopy study.

The purpose of this study was to determine the effectiveness of EDTA and MTAD at different temperatures as a final irrigant to remove the smear layer after the use of 5.25% NaOCl. Seventy-eight human mandibular premolars with single straight canal were prepared by a crown-down technique using rotary 0.

Intraradicular splinting with endodontic instrument of horizontal root fracture.

Introduction. Root fractures, defined as fractures involving dentine, cementum, and pulpal and supportive tissues, constitute only 0.5-7% of all dental injuries.

Evaluation of microcrack formation in root canals after instrumentation with different NiTi rotary file systems: a scanning electron microscopy study.

The aim of this study was to evaluate the dentinal microcrack formation of ProTaper Universal, ProTaper Next, and WaveOne. Sixty extracted mandibular molars were selected. The mesial roots were resected and randomly divided into four groups (n = 15).

Age and sex-related differences of pulp chamber size in mandibular second molars.

Aim: The aim of this study was to compare the size of the pulp chamber in mandibular second molars with the gender and age by means of panoromic radiographs.

Materials And Methods: In this study, 200 panoromic radiographs of patients were randomly selected from the archives of the Faculty of Dentistry of Ondokuz Mayis University. The radiographs of the patients were measured under a stereomicroscope and categorized according to the gender and age.