Abstract：
:Enterococcus faecalis has been suggested to be an important etiological agent in endodontic failures. The purpose of this study was to evaluate the effectiveness of chlorhexidine- or antibiotics-based medications in eliminating E. faecalis biofilms. One-day and three-day biofilms of E. faecalis were induced on cellulose nitrate membrane filters. Each biofilm-containing membrane was thoroughly covered with 1 ml of the test medications and incubated for 1 day at 37 degrees C. Treated biofilms were then aseptically transferred to vials containing a neutralizing agent in saline solution and vortexed. Suspensions were 10-fold diluted, seeded onto Mitis salivarius agar plates, and the colony-forming units counted after 48 h of incubation. There were significant differences between the formulations tested. The association of clindamycin with metronidazole significantly reduced the number of cells in 1-day biofilms. However of all medications tested, only 2% chlorhexidine-containing medications were able to thoroughly eliminate most of both 1-day and 3-day E. faecalis biofilms.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Lima KC,Fava LR,Siqueira JF Jrdoi
10.1097/00004770-200110000-00004keywords:
subject
Has Abstractpub_date
2001-10-01 00:00:00pages
616-9issue
10eissn
0099-2399issn
1878-3554pii
S0099-2399(05)61016-3journal_volume
27pub_type
杂志文章abstract：:The Editorial Board of the Journal of Endodontics has developed a literature-based study guide of topical areas related to endodontics. This study guide is intended to give the reader a focused review of the essential endodontic literature and does not cite all possible articles related to each topic. Although citing ...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2007.08.012
更新日期：2008-05-01 00:00:00
abstract：:The purpose of this in vitro study was to investigate the canal configuration types, and the prevalence and location of anatomical variations in the mesiobuccal (MB) and mesial roots of permanent maxillary and mandibular first molars after instrumentation. The number and the type of canals were determined before instr...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/01.don.0000145425.73364.91
更新日期：2005-05-01 00:00:00
abstract：INTRODUCTION:Recent evidence finds mineral trioxide aggregate (MTA) more effective than calcium hydroxide (CH) for direct pulp capping (DPC). The present study assessed the cost-effectiveness of MTA versus CH for DPC using a model-based simulation approach. METHODS:A mixed public/private payer perspective in the conte...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2015.08.019
更新日期：2015-12-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to investigate the effects of instrumentation and irrigation on the initial adherence of Enterococcus faecalis to root canal dentin and to explore initial microbial adhesion to root filling materials. METHODS:The following specimens were prepared: instrumented and uninstrumen...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2019.04.006
更新日期：2019-07-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to assess, by scanning electron microscopic (SEM) analysis, the ability of 17% EDTA and 7% maleic acid in the removal of the smear layer from the human root canal system. METHODS:Eighty single-rooted human anterior teeth were subjected to standardized root canal instrumentation (...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2009.07.021
更新日期：2009-11-01 00:00:00
abstract：INTRODUCTION:The purpose of this article was to compare the cyclic fatigue resistance of Reciproc and Reciproc Blue files (VDW GmbH, Munich, Germany) that were used to prepare root canals of mandibular molar teeth with or without a glide path. METHODS:Sixty Reciproc R25 and 60 Reciproc Blue R25 files were used. The Re...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.03.004
更新日期：2018-06-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to evaluate the root canal preparation in flat-oval canals treated with either rotary or self-adjusting file (SAF) by using micro-tomography analysis. METHODS:Forty mandibular incisors were scanned before and after root canal instrumentation with rotary instruments (n = 20) or SA...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.03.017
更新日期：2011-07-01 00:00:00
abstract：INTRODUCTION:Endodontic diagnostic tests are often used clinically to assess pulp status as a basis for the diagnosis and determination of whether root canal treatment (RCT) is indicated. Response to cold and pain on percussion are 2 common tests, yet their validity in identifying nonvital pulp in regular dental practi...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.03.016
更新日期：2016-06-01 00:00:00
abstract：INTRODUCTION:Electronic working length measurement during root canal treatment in teeth with enlarged apical foramina is a challenge. The aims of this in vitro study were (1) to assess the influence of foramen widening on the accuracy of 5 different electronic foramen locators (EFLs) and (2) to compare the accuracy of ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.09.032
更新日期：2014-01-01 00:00:00
abstract：INTRODUCTION:In regenerative endodontic treatment (RET) for immature permanent tooth, better treatment results could be obtained by applying platelet-rich plasma (PRP) as the scaffold rather than the blood clot. The goal of this study was to compare the histologic differences between using PRP and blood clot in RET. M...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.03.020
更新日期：2014-09-01 00:00:00
abstract：INTRODUCTION:The authors conducted a prospective, randomized, single-blind study to determine the degree of pulpal anesthesia obtained with a primary infiltration of 1 cartridge of articaine in the incisive/mental nerve region of the mandibular second premolar and to determine the anesthetic efficacy of a repeat artica...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2012.11.039
更新日期：2013-03-01 00:00:00
abstract：:The purpose of this study was to compare the reinforcement and strengthening ability of Resilon, gutta-percha, and a self-curing composite resin (Bisfil 2B) in endodontically treated roots of immature teeth. Sixty single rooted teeth were divided into five groups of 12 teeth each. Teeth in all groups except the negati...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2005.08.001
更新日期：2006-04-01 00:00:00
abstract：:A long-standing lesion associated with an undetected perforation of the furca in a mandibular molar was successfully managed using a multidisciplinary treatment approach. The sequence of therapeutic procedures involved conventional endodontic retreatment, an initial orthograde sealing of the perforation, guided tissue...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)80989-1
更新日期：1995-11-01 00:00:00
abstract：:This study compared the microshear bond strength of three resin-based sealers to root dentin and assessed whether sealer cements behave differently in thin and thick films. Extracted maxillary premolars were sectioned buccolingually, and 45 root halves were randomly allocated for microshear bond testing with the three...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2008.10.009
更新日期：2009-01-01 00:00:00
abstract：INTRODUCTION:It is important to develop an antimicrobial agent without any damage on dental pulp. In the present study, we examined whether pretreatment of bacterial lipopolysaccharides (LPS) with ozonated water (O(3)aq) improves LPS-induced responses of rat odontoblastic cell line, KN-3. METHODS:After the pretreatmen...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2009.01.016
更新日期：2009-05-01 00:00:00
abstract：:Two electronic apex locators based on the gradient (Apit) and absolute (Odontometer) impedance principles were evaluated. Distances of file tips to apical foramina were determined in vivo with the electronic apex locators and subsequently verified after extraction. Mean differences between file tips and apical foramin...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(06)80145-7
更新日期：1996-05-01 00:00:00
abstract：:The aim of this study was to investigate the extent of calcium ion (Ca(2+)) removal on root dentin after treatment with 1.25% NaOCl, 2.5% NaOCl, 5.25% NaOCl, 2% chlorhexidine (CHX), 2% iodine potassium iodide (IKI), and MTAD in 3 immersion time periods. Extracted human mandibular premolars were bisected longitudinally...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2008.11.016
更新日期：2009-02-01 00:00:00
abstract：INTRODUCTION:We evaluated the effect of various antimicrobials used in endodontic regeneration on a 3-week-old Enterococcus faecalis biofilm. METHODS:E. faecalis biofilm was grown on standardized dentin samples for 3 weeks. Infected dentin samples were randomized into 8 experimental groups (n = 8) and treated with cal...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2015.09.023
更新日期：2016-02-01 00:00:00
abstract：INTRODUCTION:It has been reported that integrin-α5 (ITGA5) activity is related to cell proliferation, differentiation, migration, and organ development. However, the involvement of ITGA5 in the biological functions of human dental pulp stem cells (hDPSCs) has not been explored. The aim of this study was to investigate ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.08.011
更新日期：2014-02-01 00:00:00
abstract：:The structure of mechanically instrumented intraradicular dentin after irrigation with NaOCl as the initial rinse and BioPure MTAD as the final rinse were examined from the coronal, middle, and apical parts of root canal walls using transmission electron microscopy. Sterile distilled water and EDTA as final rinses wer...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2005.10.035
更新日期：2006-03-01 00:00:00
abstract：:This report examines three clinical cases of root-filled teeth with primary endodontic lesions. During endodontic surgery, an area of incomplete root bifurcation beginning in the coronal or middle third of the root surface and terminating at or near the apical foramen were observed. The radicular grooves of two teeth ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200005000-00012
更新日期：2000-05-01 00:00:00
abstract：INTRODUCTION:Revascularization is a valuable treatment in immature necrotic teeth that allows the continuation of root development. In this article we describe successful revascularization treatment of 2 necrotic immature first mandibular molars. METHODS:The clinical and radiographic examinations showed extensive coro...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2011.01.011
更新日期：2011-04-01 00:00:00
abstract：:The aim of this study was to evaluate and compare the quantitative and qualitative inflammatory responses and bone formation potential after implantation of polyethylene tubes filled with a new calcium hydroxide containing sealer (MBPc) and ProRoot mineral trioxide aggregate (MTA). There were 48 Wistar rats divided in...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2005.07.007
更新日期：2006-06-01 00:00:00
abstract：INTRODUCTION:It has been widely accepted that dental pulp stem cells (DPSCs), which are a class of self-renewal and differentiation potential of adult stem cells, play an important role in the repair procession of pulp's inflammation. We investigated whether tumor necrosis factor alpha (TNF-α) could induce the prolifer...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2015.02.020
更新日期：2015-07-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to establish a stable experimental mice pulpal inflammatory model and to evaluate inflammatory reactions of pulpal tissue after pulpal exposure. METHODS:Pulpal inflammation was induced in 80 C57BL/6 mice by occlusal exposure of the pulp of the maxillary first molar. The mice ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.09.003
更新日期：2017-01-01 00:00:00
abstract：INTRODUCTION:Phentolamine mesylate has been reported to be an effective local anesthetic reversal agent for soft tissue but has not been studied regarding reversal of pulpal anesthesia. The authors conducted a prospective randomized, single-blind study comparing the reversal of pulpal and soft tissue anesthesia when ph...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2012.12.024
更新日期：2013-04-01 00:00:00
abstract：:A comparison of the microleakage of mineral trioxide aggregate (MTA) and a high copper admix amalgam (Valiant PhD) in root-end preparations was made using a fluid conductive device. Thirty-three bilaterally matched pairs of extracted, single-rooted teeth were prepared and obturated using lateral compaction of gutta-pe...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(98)80160-X
更新日期：1998-11-01 00:00:00
abstract：:The cytotoxicity against two mesenchymal cell lines, L-929 and WI-38, and two epithelial cell lines, KB and HeLa S-3, of lipopolysaccharide (LPS) purified from strains of Bacteroides gingivalis, Fusobacterium nucleatum, and Veillonella parvula isolated from infected root canals was investigated. The inhibition of cell...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(89)80195-5
更新日期：1989-11-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to evaluate the bond strength of different adhesive sealers on Resilon and gutta-percha. METHODS:Pellets of gutta-percha and Resilon were embedded into test tubes. Small eyelets were attached to those surfaces with a 0.5-mm film of different root canal sealers. Real Seal, Real Se...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2010.01.004
更新日期：2010-05-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to evaluate the antimicrobial effects of root canal sealers on Enterococcus faecalis biofilms in dentinal tubules by using a novel dentin infection model. METHODS:Cells of E. faecalis were introduced into the dentinal tubules by centrifugation and incubated in brain-heart inf...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.10.042
更新日期：2014-04-01 00:00:00
