Modification of mineral trioxide aggregate. Physical and mechanical properties.

abstract：AIM:The purpose of this study was to evaluate the influence of rotational speed, torque, and operator experience with a specific Ni-Ti rotary instrumentation technique on the incidence of locking, deformation and separation of instruments. METHODOLOGY:ProFile Ni-Ti rotary instruments (PRI) sizes 40-15 with a 6% taper ...

journal_title：International endodontic journal

authors： Yared GM,Bou Dagher FE,Machtou P

更新日期：2001-01-01 00:00:00

abstract：AIM:The aim of this study was to determine the percentage of anatomical canal configurations of the mesiobuccal root of the maxillary first molar in Japanese patients. METHODOLOGY:Three hundred teeth were obtained from general dentists who knew absolutely that they were extracted from Japanese patients. The distobucca...

journal_title：International endodontic journal

authors： Weine FS,Hayami S,Hata G,Toda T

更新日期：1999-03-01 00:00:00

abstract：AIM:To evaluate the effect of rotational speed and the angle and radius of curvature of root canals on the fracture of two types of nickel-titanium rotary instruments: K3 and ProTaper. METHODOLOGY:A total of 240 root canals of extracted human maxillary and mandibular molars were divided into two groups of 120, accordi...

journal_title：International endodontic journal

authors： Martín B,Zelada G,Varela P,Bahillo JG,Magán F,Ahn S,Rodríguez C

更新日期：2003-04-01 00:00:00

abstract：:An in vitro endodontic leakage model was used to compare the sealing ability of conventional retrograde amalgam fillings with a new retrograde filling technique by measuring dye leakage quantitatively. The new technique consisted of retrograde preparation of the root canal using the Endocursor, an endodontic handpiece...

journal_title：International endodontic journal

authors： Wu MK,Kean SD,Kersten HW

更新日期：1990-09-01 00:00:00

abstract：AIM:To assess if a contrast medium improved diagnostic yield of endodontic radiographs. METHODOLOGY:Forty-five extracted mandibular premolar teeth were radiographed in bucco-lingual and mesio-distal planes. Access cavities were prepared, pulpal tissue extirpated and Ultravist contrast medium introduced under pressure....

journal_title：International endodontic journal

authors： Bedford JM,Martin DM,Youngson CC

更新日期：2004-12-01 00:00:00

abstract：:In this study, an unusual observation of Saccharomyces cerevisiae isolated from an infected root canal and from the blood of a patient undergoing endodontic therapy of a tooth with asymptomatic apical periodontitis is reported. Phenotypic (biochemical tests, antifungal susceptibility tests and SDS-PAGE of cellular pro...

journal_title：International endodontic journal

authors： Debelian GJ,Olsen I,Tronstad L

更新日期：1997-09-01 00:00:00

abstract：AIM:The purpose of this study was to evaluate clinically and radiographically pulpotomies carried out under intrapulpal injection of anaesthetic solution. METHODOLOGY:Forty-one permanent mandibular molar teeth presenting with deep carious lesions and/or exposed pulps, with or without periapical changes on radiographic...

journal_title：International endodontic journal

authors： Teixeira LS,Demarco FF,Coppola MC,Bonow ML

更新日期：2001-09-01 00:00:00

abstract：AIM:To analyse the influence of exposure of mineral trioxide aggregate (MTA) with and without calcium chloride (CaCl2 ) to phosphate-buffered saline (PBS) on the push-out bond strength, over different experimental periods. METHODOLOGY:One hundred and twenty dentine discs with standardized cavities were filled with MTA...

journal_title：International endodontic journal

authors： de Almeida J,Felippe MC,Bortoluzzi EA,Teixeira CS,Felippe WT

更新日期：2014-05-01 00:00:00

abstract：:Thirty single-rooted teeth were prepared to receive cast posts. After cementation of the post the teeth were divided into three groups. Group I did not receive any treatment, whereas the posts in groups II and III were treated with an ultrasonic device, for 2 min and 5 min, respectively. The force required for post re...

journal_title：International endodontic journal

authors： Berbert A,Filho MT,Ueno AH,Bramante CM,Ishikiriama A

更新日期：1995-01-01 00:00:00

abstract：:Thorough knowledge of anatomical complexities of the root canal system has a direct impact on the effectiveness of canal preparation and filling, and is an essential prerequisite for successful root canal treatment. A wide range of complex variations in root canal anatomy exists, including root canal configuration typ...

journal_title：International endodontic journal

authors： Ahmed HMA,Neelakantan P,Dummer PMH

更新日期：2018-02-01 00:00:00

abstract：AIM:To compare several parameters of root canal preparation using two different rotary nickel-titanium (Ni-Ti) instruments: FlexMaster (VDW, Munich, Germany) and HERO 642 (Micro-Mega, Besançon, France). METHODOLOGY:Fifty extracted human mandibular molars with root canal curvatures between 20 and 40 degrees were embedd...

journal_title：International endodontic journal

authors： Hülsmann M,Gressmann G,Schäfers F

更新日期：2003-05-01 00:00:00

abstract：:Electric pulp testers (EPTs) are widely used to assess tooth pulp vitality. With many unipolar EPTs the electrical circuit is completed through the operator. Since dentists now routinely wear rubber gloves, these might be expected to provide electrical insulation, and therefore to break the circuit. The objective of t...

journal_title：International endodontic journal

authors： Treasure P

更新日期：1989-09-01 00:00:00

abstract：AIM:To develop a convenient method for the localization and quantification of live and dead bacteria in human ex vivo mineralized dentinal tubules. METHODOLOGY:The roots from human single-rooted teeth (n = 12) were infected with Enterococcus faecalis V583 and either treated with calcium hydroxide paste or left untreat...

journal_title：International endodontic journal

authors： Parmar D,Hauman CH,Leichter JW,McNaughton A,Tompkins GR

更新日期：2011-07-01 00:00:00

abstract：AIM:To compare the antibacterial activity of 2-hydroxyisocaproic acid (HICA) with currently used root canal medicaments and to examine their interactions with potential inhibitors in nutrient-deficient and nutrient-rich conditions. METHODOLOGY:First, the antibacterial activity of single concentrations of HICA, calcium...

journal_title：International endodontic journal

authors： Sakko M,Tjäderhane L,Sorsa T,Hietala P,Rautemaa R

更新日期：2016-04-01 00:00:00

abstract：AIM:To compare torque and angle of rotation at fracture of new and used K3 rotary instruments. The relation between size of instrument and torque at fracture was also investigated. METHODOLOGY:Nickel-titanium (Ni-Ti).06 K3 rotary instruments were used in a crown-down manner at 300 r.p.m. to prepare canals in resin blo...

journal_title：International endodontic journal

authors： Yared G,Kulkarni GK,Ghossayn F

更新日期：2003-11-01 00:00:00

abstract：AIM:To compare the effect of 5.25% NaOCl or 17% EDTA solutions on the surface topography and roughness of GTX, TF, RaCe and Hero Shaper instruments using atomic force microscopy (AFM) analysis. METHODOLOGY:Four new files of each brand were subjected to AMF analysis; then each group was subdivided into two subgroups (n...

journal_title：International endodontic journal

authors： Fayyad DM,Mahran AH

更新日期：2014-06-01 00:00:00

abstract：AIM:The aim of this study was to test the null hypothesis that sodium hypochlorite irrigation of root canals does not alter the properties of dentine and contribute to the weakening of root-treated teeth. METHODOLOGY:The effect of two concentrations (0.5%, 5.25%) of sodium hypochlorite (NaOCl) and saline on (i) the el...

journal_title：International endodontic journal

authors： Sim TP,Knowles JC,Ng YL,Shelton J,Gulabivala K

更新日期：2001-03-01 00:00:00

abstract：AIM:To determine the influence of filling technique and root canal area on the percentage of gutta-percha (PGP) in laterally compacted root fillings. METHODOLOGY:Sixty extracted canine teeth were accessed and the root canals instrumented to the same size. They were then divided in three groups and filled with laterall...

journal_title：International endodontic journal

authors： Souza EM,Wu MK,van der Sluis LW,Leonardo RT,Bonetti-Filho I,Wesselink PR

更新日期：2009-08-01 00:00:00

abstract：:This case report highlights the diagnostic challenge that herpes zoster represents if pain develops in the prodromal stage. A 58-year-old male presented with pain in the left maxilla. The symptoms had lasted for 7 months. The first premolar had been extracted soon after the onset, and the second premolar root filled s...

journal_title：International endodontic journal

authors： Fristad I,Bårdsen A,Knudsen GC,Molven O

更新日期：2002-12-01 00:00:00

abstract：AIM:To examine the role of stromal cell-derived factor 1 (SDF-1) signalling during odontogenic differentiation in human dental pulp cells (HDPCs). METHODOLOGY:Human dental pulp cells were treated with differentiation medium, recombinant human SDF-1, neutralizing antibody for SDF-1 or CXCR4, pertussis toxin (PTX) and A...

journal_title：International endodontic journal

authors： Kim DS,Kim YS,Bae WJ,Lee HJ,Chang SW,Kim WS,Kim EC

更新日期：2014-06-01 00:00:00

abstract：AIM:To identify, search for and critically interpret the results from clinical studies on single- versus multiple-visit root canal treatment in the light of an evidence-based paradigm. For that purpose, the quality of the available body of evidence was assessed using the SORT 'grade' - Strength of Recommendation Taxono...

journal_title：International endodontic journal

authors： De-Deus G,Canabarro A

更新日期：2017-03-01 00:00:00

abstract：PURPOSE:The aim of this study was to answer the question: For patients requiring apicoectomy (apicectomy/root-end resection) and retrograde (root-end) obturation (filling), which retrograde obturation (root-end filling) material(s) is/are the most effective, as determined by reduction in periapical radiolucency and eli...

journal_title：International endodontic journal

authors： Niederman R,Theodosopoulou JN

更新日期：2003-09-01 00:00:00

abstract：AIM:To assess and compare the mechanical properties of TRUShape (TRS) with several nickel-titanium rotary instruments. METHODOLOGY:Cyclic fatigue, torsional resistance, flexibility and surface microhardness of TRS (size 25, 0.06v taper), ProTaper Next X2 (PTN X2, size 25, 0.06 taper), ProTaper Gold (PTG F2; size 25, 0...

journal_title：International endodontic journal

authors： Elnaghy AM,Elsaka SE

更新日期：2017-08-01 00:00:00

abstract：AIM:To apply a standardized protocol for the orofacial evaluation of two adult siblings (one male and one female) with Hereditary Sensory Radicular Neuropathy (HSRN) that presented with dental problems. SUMMARY:The systematic evaluation consisted of (a) clinical questionnaire; (b) radiographs [orthopantomography and c...

journal_title：International endodontic journal

authors： Siqueira SR,Okada M,Lino AM,Teixeira MJ,Siqueira JT

更新日期：2006-11-01 00:00:00

abstract：:The thermal effects of a CO2 laser on the external root surface and inside the root canal were studied in vitro by means of computerized infrared (IR) thermography and a digital thermometer. One-hundred-and-eighty tooth roots with single root canals were irradiated internally and externally with laser power set at 0.5...

journal_title：International endodontic journal

authors： Anić I,Dzubur A,Vidović D,Tudja M

更新日期：1993-09-01 00:00:00

abstract：AIM:The apical sealing ability of three different endodontic sealers was evaluated in extracted teeth using dye penetration. METHODOLOGY:The root canals of 99 extracted human maxillary central incisors were prepared sequentially 2 mm beyond the apical foramen with a size 55 Nitiflex file. The teeth were divided into t...

journal_title：International endodontic journal

authors： De Almeida WA,Leonardo MR,Tanomaru Filho M,Silva LA

更新日期：2000-01-01 00:00:00

abstract：:Ninety-one extracted maxillary premolar teeth were restored with a prefabricated post and amalgam, composite resin or glass-cermet core. Each group was again divided into three groups of 9-13 teeth to be subjected to an increasing load in one of three standardized directions (10, 45 and 90 degrees to the long axis of ...

journal_title：International endodontic journal

authors： Huysmans MC,Peters MC,Plasschaert AJ,van der Varst PG

更新日期：1992-05-01 00:00:00

abstract：AIM:The purpose of this study was to determine the cytotoxicity of three different types of root canal sealer on human periodontal ligament (PDL) cells and a permanent hamster cell line (V79 cells). METHODOLOGY:Set specimens from two resin based sealers (AH26 and AHPlus), three zinc oxide-eugenol-based sealers (Canals...

journal_title：International endodontic journal

authors： Huang FM,Tai KW,Chou MY,Chang YC

更新日期：2002-02-01 00:00:00

abstract：AIM:To investigate whether apical periodontitis lesions infected by Epstein-Barr virus (EBV) exhibit higher levels of oxidative stress biomarkers [8-hydroxydeoxyguanosine (8-OHdG) and oxidized glutathione (GSSG)] and bone resorption regulators [receptor activator of nuclear factor (NF-κB) ligand (RANKL) and osteoproteg...

journal_title：International endodontic journal

authors： Jakovljevic A,Andric M,Nikolic N,Coric V,Krezovic S,Carkic J,Knezevic A,Beljic-Ivanovic K,Pljesa-Ercegovac M,Miletic M,Soldatovic I,Radosavljevic T,Jovanovic T,Simic T,Ivanovic V,Milasin J

更新日期：2018-06-01 00:00:00

abstract：AIM:To assess the effectiveness of an active application of liquid etching, compared with the standard gel formulation on smear layer removal from post space walls and push-out bond strength of luted fibre posts. METHODOLOGY:Human extracted teeth were collected and root filled. After post space preparation and cleanin...

journal_title：International endodontic journal

authors： Scotti N,Scansetti M,Rota R,Breschi L,Mazzoni A,Pasqualini D,Berutti E

更新日期：2013-11-01 00:00:00