Abstract:
AIM:To investigate the composition of materials and leachate of a hydrated prototype cement composed of tricalcium silicate and radiopacifier and compare this to other tricalcium silicate-based cements (Biodentine and Bioaggregate) to assess whether the additives in the proprietary brand cements affect the hydration of the materials, using Intermediate Restorative Material (IRM), a standard root-end filling material as a control. METHODOLOGY:The materials investigated included a prototype-radiopacified tricalcium silicate cement, Biodentine, Bioaggregate and Intermediate Restorative Material (IRM). The pH and calcium ion concentration of the leachate were investigated. The hydrated cements were characterized using scanning electron microscopy (SEM) and X-ray energy dispersive analysis (EDX), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). RESULTS:All the cements tested were alkaline. The tricalcium silicate-based cements leached calcium in solution. Scanning electron microscopy of the prototype-radiopacified tricalcium silicate cement, Biodentine and Bioaggregate displayed hydrating cement grains, surrounded by a matrix composed of calcium silicate hydrate and calcium hydroxide. The presence of calcium hydroxide was evident from the XRD plots. FT-IR indicated the occurrence of a poorly crystalline calcium silicate hydrate. Biodentine displayed the presence of calcium carbonate. Bioaggregate incorporated a phosphate-containing phase. IRM consisted of zinc oxide interspersed in an organic matrix. CONCLUSIONS:The hydration of prototype-radiopacified tricalcium silicate cement, Biodentine and Bioaggregate resulted in the formation of calcium silicate hydrate and calcium hydroxide, which was leached in solution. The hydrated materials were composed of a cementitous phase that was rich in calcium and silicon and a radiopacifying material. Biodentine included calcium carbonate, and Bioaggregate included silica and calcium phosphate in the powders. IRM was composed of zinc oxide interspersed in a matrix of organic material.
journal_name
Int Endod Jjournal_title
International endodontic journalauthors
Grech L,Mallia B,Camilleri Jdoi
10.1111/iej.12039subject
Has Abstractpub_date
2013-07-01 00:00:00pages
632-41issue
7eissn
0143-2885issn
1365-2591journal_volume
46pub_type
杂志文章abstract:AIM:To investigate the expression of high-mobility group box 1 (HMGB1) in human dental pulp tissues and the effects of HMGB1 on proliferation and odontoblastic differentiation of human dental pulp cells (hDPCs). METHODOLOGY:Immunohistochemical assay, immunofluorescence staining and flow cytometric analysis were used t...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12112
更新日期:2013-12-01 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
pub_type: 杂志文章
doi:10.1111/iej.12168
更新日期:2014-05-01 00:00:00
abstract:AIM:To evaluate and compare the canal shaping ability of BioRace, ProTaper NEXT and Genius engine-driven nickel-titanium (NiTi) file systems in extracted mandibular first molars using micro-computed tomography (MCT). METHODOLOGY:Sixty mesial root canals of mandibular first molars were randomly divided into three equal...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12961
更新日期:2019-01-01 00:00:00
abstract::The objective of this study was to compare the adaptation of mechanically softened gutta-percha to the root canal wall in the presence and absence of smear layer. The root canals of 20 freshly extracted human maxillary incisors were cleaned and shaped. Prior to obturation, 10 root canals were irrigated with 20 ml of 5...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1995.tb00312.x
更新日期:1995-09-01 00:00:00
abstract::The effect of temperature of plasticization on the sealing ability of Thermafil obturators was evaluated. Forty-eight canals in roots of extracted human mandibular molar teeth were divided into four groups of 12. The root canals had curvatures of less than 25 degrees, as determined using the Schneider technique. Four ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1994.tb00227.x
更新日期:1994-01-01 00:00:00
abstract:AIM:To present examples of radiographic image reconstructions in endodontic treatment, to discuss the potential problems arising from the use of image processing software and to mention some current methods to prevent such counterfeit utilization of digital endodontic radiographs. SUMMARY:Conventional Ultra-Speed peri...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.0143-2885.2004.00780.x
更新日期:2004-03-01 00:00:00
abstract::Microorganisms and their by-products are considered to be the major cause of pulp and periradicular pathosis. Hence, a major objective in root canal treatment is to disinfect the entire root canal system, which requires that all contents of the root canal system be eliminated as possible sources of infection. This goa...
journal_title:International endodontic journal
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2591.2008.01540.x
更新日期:2009-04-01 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
pub_type: 杂志文章
doi:10.1111/iej.12189
更新日期:2014-06-01 00:00:00
abstract:AIM:To evaluate the intratubular antimicrobial activity of several oxidant and chelating agents associated with or without surfactants in experimentally infected root canals, using confocal laser scanning microscopy. METHODOLOGY:Twenty-four dentine blocks from bovine incisors were contaminated for 5 days with Enteroco...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12863
更新日期:2018-04-01 00:00:00
abstract:AIM:To investigate the expression of TLR2 in refractory periapical lesions. METHODOLOGY:Refractory periapical lesion biopsies were histopathologically and clinically categorized into asymptomatic periapical granuloma (n=10), symptomatic periapical granuloma (n=10) or periapical cyst (n=10) and prepared for immunohisto...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2011.01893.x
更新日期:2011-10-01 00:00:00
abstract::The reliability of two commonly used methods of sealability testing, dye leakage under normal atmospheric pressure and dye leakage in a partial vacuum, was tested using a repeated studies design. Forty extracted teeth were instrumented and obturated using lateral condensation of gutta-percha and Sealapex sealer. One-h...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1995.tb00291.x
更新日期:1995-05-01 00:00:00
abstract:AIM:To investigate amongst Greek endodontists the incidence of percutaneous injuries, the circumstances associated with them, the therapeutic measures taken after the injuries and their compliance with infection control measures. METHODOLOGY:One hundred and forty-seven endodontists met the inclusion criteria and were ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2012.02126.x
更新日期:2013-03-01 00:00:00
abstract:AIM:To evaluate the bond strength of a resin-based sealer (AH Plus) to root canal dentine after the removal of a zinc oxide-eugenol-based sealer (Endofill), using different retreatment techniques. METHODOLOGY:The root canals of sixty-four maxillary incisors were prepared with ProTaper and filled with Endofill/gutta-pe...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12170
更新日期:2014-05-01 00:00:00
abstract:AIM:To use micro-computed tomography (μ-CT) to evaluate the amount of calcium hydroxide [Ca(OH)2 ] remaining in the C-shaped root canals of mandibular second molars after attempting to remove it with passive ultrasonic and sonic irrigation. METHODOLOGY:Thirty mandibular second molars, 15 in C1 and 15 in C2 configurati...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12319
更新日期:2015-04-01 00:00:00
abstract:AIM:To evaluate the performance of XP-endo Finisher R instruments when removing root filling remnants from oval-shaped canals using microcomputed tomographic (micro-CT) imaging as the analytical tool. Passive ultrasonic irrigation (PUI) was used as a reference technique for comparison. METHODOLOGY:Twenty mandibular in...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.13077
更新日期:2019-06-01 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
pub_type: 杂志文章
doi:10.1046/j.1365-2591.2003.00732.x
更新日期:2003-11-01 00:00:00
abstract::The aim of this study was to evaluate the accuracy of the electronic apex locator Root ZX compared to the Sono Explorer Mark II Junior and Apit III in detecting root perforations. Extracted human teeth (n = 30) were perforated artificially in the middle third of the root and embedded in a box containing alginate. Dete...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.1997.00107.x
更新日期:1997-11-01 00:00:00
abstract:AIM: To discuss the clinical and radiographic success of a pulpotomy with second-generation platelet concentrate (PRF), in a human mature permanent molar tooth. SUMMARY: A 19-year-old female patient reported to the Department of Conservative Dentistry and Endodontics with established pulpitis in tooth 36. The tooth ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2011.01973.x
更新日期:2012-01-01 00:00:00
abstract:AIM:To compare the push-out bond strength exhibited by root fillings performed with either C-Point and Endosequence® BC sealer™ (BC Sealer) or gutta-percha and AH Plus® after the instrumentation of oval canals with either the Self-Adjusting File (SAF) System or WaveOne (WO) reciprocating file. METHODOLOGY:Eighty extra...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12455
更新日期:2016-04-01 00:00:00
abstract:AIM:To investigate melatonin (MEL) levels in human dental pulp tissue (hDP) in type 2 diabetic (T2D) participants and the underlying molecular mechanisms of its effects in human dental pulp cells (hDPCs) under hyperglycaemia. METHODOLOGY:The study included 16 healthy and 16 T2D participants who underwent vital pulp ex...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12934
更新日期:2018-10-01 00:00:00
abstract::A rare case of dens invaginatus involving a non-carious mandibular lateral incisor with periapical periodontitis is reported. Invaginated teeth present technical difficulties in their clinical management because of their abnormal anatomy. In the present case, non-surgical root canal therapy was chosen. A one-year foll...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1995.tb00320.x
更新日期:1995-11-01 00:00:00
abstract:AIM:To compare ex vivo the penetration of three brands of gutta-percha cones, compacted under a constant force and heated to different temperatures, into artificial lateral canals. METHODOLOGY:Resin blocks with simulated main canals, each having two lateral canals (C at 6.5 and A at 13 mm from the surface of the resin...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2006.01133.x
更新日期:2006-08-01 00:00:00
abstract:AIM:The aim of this study was to compare two protocols to examine bacterial colonization in teeth associated with chronic apical periodontitis with acute episodes (ap), using light microscopy (LM), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). METHODOLOGY:Nine root samples (seven teeth...
journal_title:International endodontic journal
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2591.2009.01594.x
更新日期:2009-10-01 00:00:00
abstract:AIM:To identify the role of astrocyte elevated gene-1 (AEG-1) and the mechanism underlying the inflammatory response in dental pulp cells. METHODOLOGY:Astrocyte elevated gene-1 expression was detected at different stages of pulpitis in a rat model using immunohistochemistry. RT-qPCR and Western blot were used to asses...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12921
更新日期:2018-10-01 00:00:00
abstract:AIM:To evaluate the influence of root canal form on the sealing ability of two root canal sealers. METHODOLOGY:Twenty radiographically confirmed straight and 20 curved root canals were prepared with a stepback hand filing technique. Root canal aberrations created during preparation were determined by the use of double...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2006.01079.x
更新日期:2006-04-01 00:00:00
abstract::The effect on coronal leakage of the use of either a single gutta-percha cone or cold lateral condensation of gutta-percha, with a glass ionomer sealer cement was studied. In addition, the effect of the removal of the smear layer was also determined. Eighty-eight single-rooted teeth were prepared chemomechanically usi...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1994.tb00255.x
更新日期:1994-07-01 00:00:00
abstract:AIM:To investigate the role of the Ca(2+) -Mg(2+) ion channel TRPM7 in the proliferation, migration and osteogenic differentiation of human dental pulp stem cells (hDPSCs). METHODOLOGY:Immunohistochemistry was used to localize expression of TRPM7 in human dental pulp tissues and in cultured hDPSCs. Isolated hDPSCs wer...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12193
更新日期:2014-06-01 00:00:00
abstract::Four hundred and fifty-five extracted mandibular incisor and 340 extracted mandibular premolar teeth were radiographed to assess the incidence of twin canals as visualized on radiographs taken in the mesio-distal direction. The ability to detect the presence of these twin canals by viewing radiographs taken in the sta...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1991.tb00808.x
更新日期:1991-03-01 00:00:00
abstract:AIM:To describe the decision-making process of the general dental practitioner (GDP) underlying the choice of coronal restoration of a root filled tooth. METHODOLOGY:GDPs were strategically selected with respect to gender, age, undergraduate dental school, service affiliation and duration of professional experience. S...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.13442
更新日期:2020-11-07 00:00:00
abstract:AIM:To quantify Substance P (SP) and Calcitonin gene-related peptide (CGRP) expression in healthy human periodontal ligament from premolars after root canal preparation with Reciproc Blue, WaveOne Gold, XP EndoShaper and hand files. METHODOLOGY:A total of 50 human periodontal ligament samples were obtained from health...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12952
更新日期:2018-12-01 00:00:00