Abstract：
:The purpose of this study was to evaluate gray mineral trioxide aggregate (MTA), white MTA, and Fuji II LC cement as coronal barriers to bacterial leakage. Seventy-eight, matched, human teeth were obturated with gutta-percha. In group I, 18 pairs received a 3-mm barrier of gray or white MTA. In group II, 18 pairs received a 3-mm barrier of gray MTA or Fuji cement. Three pairs were used as positive (obturated without barrier) and negative (covered with epoxy resin) controls. A dual-chamber leakage model utilizing salivary microbes was used for the evaluation. Leakage was recorded when turbidity was observed. All controls behaved as expected. In group I, three gray MTA and three white MTA samples leaked. In group II, one gray MTA and three Fuji samples leaked. There was no statistically significant difference in leakage between gray and white MTA or gray MTA and Fuji at 30, 60, or 90 days. Gray and white MTA or Fuji II can be recommended as a coronal barrier for up to 3 months.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Tselnik M,Baumgartner JC,Marshall JGdoi
10.1097/00004770-200411000-00008keywords:
subject
Has Abstractpub_date
2004-11-01 00:00:00pages
782-4issue
11eissn
0099-2399issn
1878-3554pii
00004770-200411000-00008journal_volume
30pub_type
杂志文章abstract：INTRODUCTION:This case report describes the effect of unintentionally extruded mineral trioxide aggregate (MTA) into periradicular lesions and tissues on the prognosis of periradicular healing in maxillary left central incisor with periradicular lesion. METHODS:A 17-year-old girl with a large periradicular lesion from...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2009.11.026
更新日期：2010-04-01 00:00:00
abstract：:Nickel-titanium engine-driven rotary instruments are used increasingly in endodontic practice. One frequently mentioned problem is fracture of an instrument in the root canal. Very few studies have been conducted on torsional characteristics of these instruments, and none has been done under dynamic conditions. The pu...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200003000-00007
更新日期：2000-03-01 00:00:00
abstract：INTRODUCTION:This study evaluated the biocompatibility of 5 and 10 μg/mL LL-37 in vitro and its effect on the differentiation of human dental pulp stem cells (DPSCs) into odontoblast-like cells. METHODS:Cell viability, genotoxicity, nitric oxide production, cell cycle, dentine sialophosphoprotein (DSPP) production, an...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.08.010
更新日期：2017-12-01 00:00:00
abstract：:A technique using K files with modified tips has been developed for the penetration of constricted canals. The tip of a #10 K file was sliced diagonally to make it thinner. Because this modified K file has an especially fine tip and an appropriate stiffness, it followed constricted or sharply curved canals well and ha...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(97)80190-2
更新日期：1997-06-01 00:00:00
abstract：:A previous study showed that the ferret canine is an appropriate model for inducing periapical lesions. Ferret canines were used in this study to study changes in periapical lesions after root canal treatment (RCT). After periapical pathosis was induced in the maxillary and mandibular canines of six ferrets, RCT was p...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)80506-6
更新日期：1993-03-01 00:00:00
abstract：:The effectiveness of endodontic antimicrobial treatment could be determined using sensitive molecular methods. The purpose of this study was to determine if antibiotics or endodontic reagents interfere with the ability of PCR to detect Enterococcus faecalis in vitro. Amoxicillin (25 mg/ml), clindamycin (15 mg/ml), tet...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/01.don.0000152899.54247.4e
更新日期：2005-07-01 00:00:00
abstract：:Three randomly assigned groups of single-canaled extracted teeth obturated with gutta-percha were retreated using controlled application of one of three organic solvents: chloroform, xylene, or halothane. Two additional groups of teeth served as positive and negative controls. Residual volume of solvent expressed thro...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(98)80098-8
更新日期：1998-04-01 00:00:00
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.2007.11.007
更新日期：2008-05-01 00:00:00
abstract：:Historically, pulp-necrotizing agents were commonly used in endodontic treatments. They act quickly and devitalize the pulp within a few days. However, they are cytotoxic to gingiva and bone. If such an agent diffuses out of the cavity, it can readily cause widespread necrosis of gingiva and bone, which can lead to os...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/01.don.0000125881.18872.ef
更新日期：2004-10-01 00:00:00
abstract：:The sealing properties of three temporary restorative materials, Cavit, IRM, and a polycarboxylate-based cement, Ultratemp Firm, were investigated in vitro. Standardized access cavities were prepared in 45, intact, extracted, human molars. The teeth were randomly assigned to three groups and the access openings filled...
journal_title：Journal of endodontics
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/01.don.0000121610.63000.f2
更新日期：2004-08-01 00:00:00
abstract：:The purpose of this in vitro study was to evaluate quantitatively the ability of four different filling materials to seal the orifices of root canals as a secondary seal after root canal therapy. Forty extracted human molar teeth were used. The top of pulp chambers and distal halves of the roots were removed using an ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200108000-00006
更新日期：2001-08-01 00:00:00
abstract：INTRODUCTION:This in vitro study compared cone-beam computed tomography (CBCT) exam with different voxel sizes with digital periapical radiography in the detection of vertical root fractures in teeth with and without intracanal metallic posts. METHODS:Eighteen single-rooted human teeth were endodontically treated, pre...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.08.031
更新日期：2013-12-01 00:00:00
abstract：INTRODUCTION:The goal of replantation after dental avulsion is to maintain the tooth in its socket. Presence of vital periodontal ligament cells on the root surface of the replanted tooth and the immunologic status of the patient are factors that protect against root resorption. It is known that dental constituents pla...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.09.020
更新日期：2017-01-01 00:00:00
abstract：INTRODUCTION:This review aimed to compare the kinematic effect of nickel-titanium instruments with reciprocating and continuous rotation motion for cyclic fatigue resistance, shaping ability, apical debris extrusion, and dentinal defects or cracks. METHOD:Articles were selected for inclusion in this review if they ful...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2016.04.002
更新日期：2016-07-01 00:00:00
abstract：INTRODUCTION:Failure in endodontic treatment is often caused by the persistence of microorganisms in the root canal after therapy. When treatment fails, an immune response develops that is characterized by an extensive network of immunologic mechanisms that lead to the production of cytokines and chemokines. METHODS:T...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.08.007
更新日期：2011-12-01 00:00:00
abstract：:The state of contamination by methicillin-resistant Staphylococci, including methicillin-resistant Staphylococcus aureus (MRSA) at the conservative dentistry section of the School of Dentistry, Aichi-Gakuin University, was investigated. Methicillin-resistant coagulase-negative Staphylococci (MRCNS) were detected in 8 ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)80552-2
更新日期：1995-01-01 00:00:00
abstract：:This study tested the hypothesis that the seal of EndoREZ may be improved with an adhesive-modified technique. Instrumented single-rooted teeth were filled with: (a) Warm vertical compaction with AH Plus (control); (b). EndoREZ with master cones and passive application of accessory cones; (c) Application of Clearfil L...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2006.01.006
更新日期：2006-08-01 00:00:00
abstract：:A comparison was made of the apical leakage of three sealers. Fifty single-root human teeth were randomly divided into 5 groups (n = 10; 3 experimental and 2 control). The teeth of the positive-control and experimental groups were instrumented with K-type files to size 45. The experimental groups were obturated by lat...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200206000-00001
更新日期：2002-06-01 00:00:00
abstract：:The biocompatibility and apical microleakage of tricalcium phosphate based Sankin Apatite (SA) Type I, II, and III root canal sealers were investigated. Teflon tubes containing freshly mixed test materials were implanted in the subcutaneous tissue of mice. The observation periods were 24 h, 7, and 30 days, after which...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(97)80255-5
更新日期：1997-02-01 00:00:00
abstract：INTRODUCTION:The aim of the present systematic review and meta-analysis was to evaluate the success and survival rate of endodontically treated cracked posterior teeth and to assess the preoperative factors that affect teeth survival. METHODS:The study protocol was registered on the PROSPERO international prospective ...
journal_title：Journal of endodontics
pub_type： 杂志文章,meta分析
doi：10.1016/j.joen.2020.01.006
更新日期：2020-04-01 00:00:00
abstract：:The aim of this study was to measure root-dentin microhardness after instrumentation with two types of files and using irrigation with 2.5% sodium hypochlorite. Thirty roots were instrumented with irrigation: 10 roots had the pulp extirpated only; 10 roots were instrumented with stainless steel files, and 10 roots wer...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200204000-00012
更新日期：2002-04-01 00:00:00
abstract：:The oral region comprises 1% of the total body area, yet it accounts for 5% of all bodily injuries. In preschool children, oral injuries make up as much as 17% of all bodily injuries. The incidence of traumatic dental injuries is 1%-3%, and the prevalence is steady at 20%-30%. The annual cost of treatment is US $2-$5 ...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2012.11.021
更新日期：2013-03-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to perform a descriptive analysis of the occurrence of external cervical resorption (ECR) in relation to the patients' characteristics (sex, age, and tooth type) and the potentially involved predisposing factors. METHODS:This study includes data on 284 patients (337 teeth with ev...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.05.026
更新日期：2017-10-01 00:00:00
abstract：:Pulp revascularization is a promising procedure for the treatment of adolescents' immature permanent teeth with necrotic pulp and/or apical periodontitis. However, the ability to successfully perform pulp revascularization in a middle-aged patient remains unclear. A 39-year-old woman was referred for treatment of teet...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2015.04.022
更新日期：2015-09-01 00:00:00
abstract：:Because of its close proximity to teeth and periodontium, gingival squamous cell carcinoma (SCC) can sometimes mimic tooth-related benign inflammatory conditions, resulting in misdiagnosis. In this study we report a case of gingival SCC that mimicked a dentoalveolar abscess of endodontic origin in its early presentati...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2006.08.005
更新日期：2007-02-01 00:00:00
abstract：:This study compared the effect of two drills and five cleaning regimens on post space debridement. One hundred extracted premolars were instrumented and obturated with warm vertical compaction of gutta percha. The teeth were divided into two groups according to the drill used to remove gutta percha/sealer and for post...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2007.10.019
更新日期：2008-01-01 00:00:00
abstract：INTRODUCTION:Nonequilibrium plasma has been reported to effectively kill Enterococcus faecalis in endodontic biofilm compared with chlorhexidine digluconate (CHX). The purpose of this study was to evaluate the antimicrobial in vitro activity of modified nonequilibrium plasma with CHX against E. faecalis and multispecie...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.06.027
更新日期：2013-11-01 00:00:00
abstract：INTRODUCTION:The improvement of regenerative endodontic procedures requires an understanding of the key clinical questions combined with a fundamental biological knowledge of how the dental tissues behave during health, disease, and repair. Therefore, partnerships between clinicians and basic scientists are essential t...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2020.06.019
更新日期：2020-09-01 00:00:00
abstract：INTRODUCTION:Many anatomical variations can occur within the mandibular first molar. Commonly, 3-4 canals are located, but as many as 6-7 canals have been reported. METHODS:This report describes a case of a mandibular first molar with 6 separate canals (3 mesial and 3 distal) that was instrumented with conventional ha...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.03.005
更新日期：2011-06-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to assess the effect of nitrogen ion implantation on the flexibility of rotary nickel-titanium (NiTi) instruments as measured by the load required to bend implanted and nonimplanted instruments at a 30° angle. METHODS:Thirty K3 files, size #40, 0.02 taper and 25-mm length, were a...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2012.01.012
更新日期：2012-05-01 00:00:00
