Abstract:
AIM:To introduce and assess a novel method for measuring washout resistance of cement-based dental materials, including mineral trioxide aggregate (MTA), to qualitatively verify the results with a clinical simulation and to evaluate the washout resistance of a new root-end filling material. METHODOLOGY:A method for assessment of washout resistance of root-end filling materials was developed by adapting the CRD-C 661-06 (a method for evaluating the resistance of freshly mixed concrete to washout in water), to permit testing of dental cements. White Portland cement (PC), MTA-Plus mixed with either water or a polymer-based antiwashout gel (MTA-AW), MTA-Angelus, IRM and amalgam were tested with either distilled water or HBSS as washout media. Additionally, the washout resistance was tested qualitatively by spraying the test materials at the terminus of simulated canals with a metered jet of water. RESULTS:A mass loss of 2-7% for PC, 0.4-4% for MTA-Plus, -0.9% for MTA-AW, 5-10% for MTA-Angelus and 0% for IRM and amalgam was recorded with the modified CRD-C 661-06 method. No significant difference was found between using water and HBSS as washout media for the same material. The results of the modified CRD-C 661-06 method were similar to those obtained on the simulated canals. CONCLUSIONS:The modified CRD-C 661-06 method provided repeatable results that were comparable to the simulated clinical method. The antiwashout gel used with MTA-Plus reduced the material washout and was similar to IRM and amalgam.
journal_name
Int Endod Jjournal_title
International endodontic journalauthors
Formosa LM,Mallia B,Camilleri Jdoi
10.1111/j.1365-2591.2012.02108.xsubject
Has Abstractpub_date
2013-02-01 00:00:00pages
179-86issue
2eissn
0143-2885issn
1365-2591journal_volume
46pub_type
杂志文章abstract:AIM:To describe the use of a new protective device to reduce aerosol dispersion in dental clinics during the COVID-19 pandemic. METHODOLOGY:The device consists of a rigid translucent acrylic structure (methyl polymethacrylate), adjusted to the dental chair, involving the patient's head, neck and chest. There is also a...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.13373
更新日期:2020-11-01 00:00:00
abstract:AIM:To determine the effect of intracoronal bleaching agents on adhesion of bonding agents to pulp chamber dentine. METHODOLOGY:Forty extracted human maxillary anterior teeth were randomly divided into four groups of 10 teeth each. Bleaching agents were sealed in pulp chambers for 7 days, as in clinical use. Group 1 (...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2004.00931.x
更新日期:2005-04-01 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
pub_type: 杂志文章,评审
doi:10.1111/iej.12621
更新日期:2017-03-01 00:00:00
abstract::The large variations observed in dentists' management of periapical lesions in endodontically treated teeth suggest that disease concepts used in clinical practice should be investigated. In the present study it was hypothesized that dentists regard various periapical conditions as different stages on a health continu...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1994.tb00270.x
更新日期:1994-11-01 00:00:00
abstract::The root canal anatomy of 19 mandibular second molars with C-shaped canals was investigated by rendering the roots transparent and allowing the canal system to be observed by black ink infiltration. The presence of three root canals was most frequent, and lateral canals were found in all roots. Transverse anastomoses ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1990.tb00801.x
更新日期:1990-01-01 00:00:00
abstract:AIM:To assess the long-term outcome of root filled teeth in a general adult population examined in 1997, 2003 and 2008. METHODOLOGY:The study provides longitudinal, observational information on endodontic status for 327 randomly selected individuals from a general Danish population receiving three consecutive full-mou...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12245
更新日期:2014-10-01 00:00:00
abstract:LITERATURE REVIEW:Inter-appointment flare-up is characterized by the development of pain, swelling or both, following endodontic intervention. The causative factors of flare-ups encompass mechanical, chemical and/or microbial injury to the pulp or periradicular tissues. Of these factors, microorganisms are arguably the...
journal_title:International endodontic journal
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2591.2003.00671.x
更新日期:2003-07-01 00:00:00
abstract::The cutting heads of the first 18 instruments in six sets of clinically used Lightspeed instruments (sizes 20-65) were examined in a scanning electron microscope (SEM). Three sets had been used by full-time faculty and discarded as follows: instrument sizes 20-32.5 after 18 treated root canals; instrument sizes 35-47....
journal_title:International endodontic journal
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract:AIM:To evaluate the physicochemical and mechanical properties of Portland cement-based experimental sealers (ES) with different radiopacifying agents (zirconium oxide and niobium oxide micro- and nanoparticles) in comparison with the following conventional sealers: AH Plus, MTA Fillapex and Sealapex. METHODOLOGY:The m...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12167
更新日期:2014-05-01 00:00:00
abstract:AIM:The Bramante method was used to study how the natural curvature of root canals was modified when using the Hero 642 nickel-titanium rotary system. METHODOLOGY:Twenty-four canals were selected in freshly extracted human mandibular molars. Every root canal had an angle of curvature greater than 20 degrees. Roots wer...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.2001.00440.x
更新日期:2001-12-01 00:00:00
abstract::The aim of this report is to (i) review the current literature on the status of root filled teeth, (ii) analyse the most important factors in decision-making, (iii) discuss the current restorative concepts, and (iv) classify both the evidence and clinical practice in a way that seeks to be clear, understandable and he...
journal_title:International endodontic journal
pub_type: 杂志文章,评审
doi:10.1111/iej.12847
更新日期:2018-03-01 00:00:00
abstract:AIM:To compare root canal treatments performed before and after education in a nickel-titanium rotary technique (NiTiR) with respect to costs for instrumentation and number of instrumentation sessions in a County Public Dental Service in Sweden. METHODOLOGY: Following education, 77% of the general dental practitioner...
journal_title:International endodontic journal
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2591.2012.02019.x
更新日期:2012-07-01 00:00:00
abstract:AIM:To devise an optimal protocol and to analyse the leucocyte composition of periapical (PA) lesions by flow cytometry. METHODOLOGY:PA lesions were mechanically agitated, with and without proteolysis. This was with either 0.2% collagenase alone, or in combination with 0.02% DNA-ase in serial incubations until all tis...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.2000.00294.x
更新日期:2000-03-01 00:00:00
abstract:AIM:To evaluate and observe the cellular reactions that occur during the interaction/integration between 2-hydroxyethyl methacrylate/host tissue/microbial environment, in a co-culture of human gingival fibroblasts (HGF) and Streptococcus mitis strains. METHODOLOGY:Streptococcus mitis were cultured with strains in the ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2011.01935.x
更新日期:2011-12-01 00:00:00
abstract:AIM:To investigate the effect of medicaments used in endodontic regeneration on root fracture resistance and microhardness of radicular dentine. METHODOLOGY:The root canals of mandibular premolars (n = 180) were instrumented and randomized into three treatment groups and an untreated control group. Each treatment grou...
journal_title:International endodontic journal
pub_type: 杂志文章,随机对照试验
doi:10.1111/iej.12046
更新日期:2013-07-01 00:00:00
abstract:AIM:The aim of this study was to determine the ability of the Quantec Series 2000 rotary nickel-titanium endodontic system to remove dentinal debris and smear layer produced during canal preparation. METHODOLOGY:A first group (control) of 12 curved root canals was prepared using conventional manual instruments and the...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.1999.00231.x
更新日期:1999-05-01 00:00:00
abstract:AIM:This study evaluated the effects of different root canal sealers on the bond strength of a fibreglass post cemented with self-adhesive resin cements. METHODOLOGY:The root canals of 50 extracted maxillary single-rooted canine teeth were prepared with the crown-down technique and randomly divided into five groups ac...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2010.01831.x
更新日期:2011-04-01 00:00:00
abstract::Following extraction of a symptomatic mandibular premolar which had been subjected to two periradicular surgical procedures, significant apical healing was identified histologically. The implications of these findings are discussed in relation to contemporary advocated treatment regimens, case assessment, and interpre...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1994.tb00280.x
更新日期:1994-11-01 00:00:00
abstract::The Netherlands Society for Endodontology has developed a 5-year plan for continuing education that served as a guideline for two basic courses in endodontology. The 2-day basic course has been attended by over 2000 dentists, and has been very much appreciated according to the evaluation outlined in this article. The ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1991.tb00131.x
更新日期:1991-07-01 00:00:00
abstract:AIM:To determine the influence of various irrigating solutions on the accuracy of the electronic apex locator facility in the Tri Auto ZX handpiece. METHODOLOGY:One hundred and forty teeth with single canals and mature apices, scheduled for extraction for either periodontal or prosthetic reasons in 76 patients were us...
journal_title:International endodontic journal
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2591.2007.01234.x
更新日期:2007-05-01 00:00:00
abstract::The typical treatment for irreversibly inflamed/necrotic pulp tissue is root canal treatment. As an alternative approach, regenerative endodontics aims to regenerate dental pulp-like tissues using two possible strategies: cell transplantation and cell homing. The former requires exogenously transplanted stem cells, co...
journal_title:International endodontic journal
pub_type: 杂志文章,评审
doi:10.1111/iej.12868
更新日期:2018-04-01 00:00:00
abstract:AIM:To develop and preliminarily evaluate a new screening instrument for atypical odontalgia (AO) or persistent dentoalveolar pain disorder (PDAP). To evaluate the instrument's performance in detecting AO/PDAP amongst a heterogeneous group of orofacial pain conditions and pain-free controls and empirically compare its ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.13017
更新日期:2019-03-01 00:00:00
abstract:AIM:To determine whether the outcome of cone beam computed tomography (CBCT) examinations performed in accordance with the European Commission guidelines in a clinical setting has an impact on choosing diagnoses in endodontics. METHODOLOGY:A prospective observational study was conducted. Fifty-three consecutive patien...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12350
更新日期:2015-06-01 00:00:00
abstract:AIM:To establish a cell line of immortalized human dental papilla cells (hDPCs). METHODOLOGY:Primary hDPCs were cultured and infected with lentivirus containing the hTERT gene. Integration and transcription of the hTERT gene were verified by PCR. The characteristics of the cells, such as morphology, proliferation and ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12029
更新日期:2013-06-01 00:00:00
abstract:AIMS:(i) To compare the prevalence of extrusion of root filling material when placed using different root filling techniques, with or without customization of the master gutta-percha (GP) cone; and (ii) to investigate the effects of some factors influencing root filling extrusion and presence of voids. METHODOLOGY:A t...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2005.01005.x
更新日期:2005-09-01 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
pub_type: 杂志文章
doi:10.1046/j.1365-2591.1999.00186.x
更新日期:1999-03-01 00:00:00
abstract:AIM:To evaluate ex vivo the accuracy of two electronic apex locators during root canal length determination in primary incisor and molar teeth with different stages of physiological root resorption. METHODOLOGY:One calibrated examiner determined the root canal length in 17 primary incisors and 16 primary molars (total...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2007.01366.x
更新日期:2008-04-01 00:00:00
abstract::An in vivo investigation was conducted to assess the ability of two laser Doppler flowmeters (DRT4, Moor Instruments Ltd; Laserflo BPM2, Vasamedics) to differentiate between vital pulp, ischaemically necrosed pulp, and an empty pulp chamber in premolar teeth in children. Sixteen intact, vital teeth in need of extracti...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.1997.00068.x
更新日期:1997-05-01 00:00:00
abstract:AIM:To investigate the prevalences of four Treponema species in primary root canal infections using a nested PCR assay. METHODOLOGY:Samples were obtained from 32 infected root canals. Twenty-two cases showed chronic asymptomatic periradicular lesions and 10 symptomatic cases were diagnosed as acute apical periodontiti...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.0143-2885.2003.00607.x
更新日期:2003-01-01 00:00:00
abstract:AIM:To assess the free available chlorine concentration (FAC), organic tissue dissolution, and smear layer removal capacity of sodium hypochlorite (NaOCl) alone and when mixtured with etidronate (HEDP) and tetrasodium EDTA (Na4 EDTA), and heated to different temperatures. METHODOLOGY:Mixtures at 1:1 ratio of 5% NaOCl ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.13450
更新日期:2020-11-20 00:00:00