Abstract：
INTRODUCTION:The purpose of this study was to compare the accuracy of the Root ZX II Apex Locator (RZX), the Elements Apex Locator (ELE), and the Precision Apex Locator (PAL). METHODS:Forty single-rooted extracted teeth were decoronated and the root canals coronally flared. Actual canal lengths were determined by inserting a #10 file until the tip was visualized (12.8x magnification) just within the apical foramina. Teeth were mounted in gelatin conducting medium and randomly tested with each electronic apex locator (EAL) to determine the electronic canal length. Differences between the electronic and actual canal lengths were calculated. RESULTS:The mean differences were -0.02 mm, 0.13 mm, and 0.15 mm for the RZX, PAL, and ELE, respectively. One-way analysis of variance showed a highly significant difference among EALs (p = 0.003). Student-Newman-Keuls post hoc analysis found significant differences between the RZX and the PAL and between the RZX and the ELE at p < 0.05. No significant difference was noted between the PAL and the ELE. The proportion of electronic canal length measurements falling within +/-0.5 mm of the actual canal lengths for the EALs was as follows: 97.5% for the RZX, 95% for the PAL, and 90% for the ELE. CONCLUSION:The RZX was the most accurate at locating the apical foramen compared with the ELE and the PAL.
journal_name
J Endodjournal_title
Journal of endodonticsauthors
Guise GM,Goodell GG,Imamura GMdoi
10.1016/j.joen.2009.09.016subject
Has Abstractpub_date
2010-02-01 00:00:00pages
279-81issue
2eissn
0099-2399issn
1878-3554pii
S0099-2399(09)00776-6journal_volume
36pub_type
杂志文章abstract：:Prostaglandins (PG) have been implicated in the genesis of periapical lesions. Periapical specimens from patients with clinical signs and symptoms of chronic and acute apical periodontitis were obtained and immediately frozen in liquid nitrogen. Periradicular tissues from unerupted third molars were frozen and used as...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(06)81737-1
更新日期：1991-03-01 00:00:00
abstract：INTRODUCTION:The aim of this study was to compare the sensitivity and specificity of cone-beam computed tomography (CBCT) scans and digital periapical radiographs (PR) in detecting strip and root perforations after root canal treatment in mandibular molars. METHODS:Forty-five curved mesial roots were endodontically pr...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2010.12.003
更新日期：2011-04-01 00:00:00
abstract：INTRODUCTION:The present study aimed to evaluate the antibacterial effect of a new peptide, DJK-5, used alone or mixed together with EDTA on mono- and multispecies biofilms in dentin canals covered by a smear layer with or without preceding sodium hypochlorite (NaOCl) irrigation. METHODS:One hundred twelve dentin bloc...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.07.018
更新日期：2018-11-01 00:00:00
abstract：INTRODUCTION:Complementary methods of anatomic diagnosis, including cone-beam computed tomographic (CBCT) imaging, may be useful in the diagnosis of mesiobuccal (MB) canals of maxillary molars. METHODS:Thirty-five maxillary first molars were subjected to ex vivo analysis and 4 CBCT protocols: i-CAT Classic (Imaging Sc...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2016.12.011
更新日期：2017-05-01 00:00:00
abstract：INTRODUCTION:Cross-sectional studies describe the health status of a population and measure the prevalence of disease or treatment. Neither the prevalence of periapical radiolucency, a surrogate for disease, nor the prevalence of root canal treatment have been subjected to a systematic review, which is the highest leve...
journal_title：Journal of endodontics
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.joen.2012.05.023
更新日期：2012-09-01 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：INTRODUCTION:The morphogenic complexities of dens invaginatus (DI) Oehlers type 3 in maxillary canines offer significant endodontic challenges. METHODS:A case report is provided of a 14-year-old female patient who presented with an anomalous-looking permanent maxillary canine associated with a sinus tract. Pulp testin...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.06.008
更新日期：2014-10-01 00:00:00
abstract：:The aim of the present study was to evaluate the in vivo antimicrobial activity of 2% chlorhexidine gluconate (FCFRP-USP) used as a root canal irrigating solution in teeth with pulp necrosis and radiographically visible chronic periapical reactions. Culture techniques and measurement of the inhibition zone were used. ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/s0099-2399(99)80135-6
更新日期：1999-03-01 00:00:00
abstract：:The choice of one-visit versus two-visit root canal therapy for necrotic teeth with apical periodontitis is a source of current debate. The primary objective of this randomized controlled clinical trial was to compare radiographic evidence of periapical healing after root canal therapy completed in one visit or two vi...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2007.12.015
更新日期：2008-03-01 00:00:00
abstract：INTRODUCTION:The purpose of this prospective, randomized controlled trial was to evaluate the healing outcomes of platelet-rich fibrin (PRF) in periapical surgeries involving apicomarginal defects and to compare these results with surgeries not using any guided tissue regeneration techniques. METHODS:Thirty patients w...
journal_title：Journal of endodontics
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.joen.2015.04.004
更新日期：2015-07-01 00:00:00
abstract：INTRODUCTION:Root fusion is an anatomic variation in maxillary second molars (MSMs); however, the nature of this canal morphology as it relates to its root anatomy has not been fully clarified. The purpose of this study was to investigate the relationship between features of fused roots and root canal anatomy in MSMs u...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.10.035
更新日期：2014-06-01 00:00:00
abstract：:The purpose of this in vitro study was to evaluate the mineral contents of root-canal dentin before and after treatment with two commonly used gutta-percha solvents: chloroform and halothane. Twenty extracted human premolars, whose crowns and apical thirds had been removed, were used. Pulp tissues were removed and the...
journal_title：Journal of endodontics
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/00004770-200401000-00012
更新日期：2004-01-01 00:00:00
abstract：INTRODUCTION:Magnetic resonance imaging (MRI) has the potential to aid in determining the presence and extent of cracks/fractures in teeth because of better contrast without ionizing radiation. The objectives were to develop MRI criteria for root crack/fracture identification and to establish reliability and accuracy i...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2019.03.008
更新日期：2019-06-01 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 aim of the present study was to compare sonic activation using EDDY (VDW, Munich, Germany), passive ultrasonic irrigation (PUI), and mechanical activation using the XPendo Finisher (FKG Dentaire, La Chaux-des-Fonds, Switzerland) for the removal of calcium hydroxide from artificial grooves in straight r...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2018.11.001
更新日期：2019-03-01 00:00:00
abstract：:Irreversibly inflamed pulp (IIP) constitutes both a pathophysiologic and a diagnostic challenge. Gingival crevicular fluid (GCF) samples were obtained with Periopaper strips from IIP and adjacent and contralateral teeth for interleukin-8 (CXCL8) and tumor necrosis factor-alpha (TNF-alpha) measurements. Pain intensity ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2007.10.022
更新日期：2008-02-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to analyze the features of lesions obtained from biopsies at the periapical area of teeth with a radiographic or clinical initial diagnosis of apical periodontitis. METHODS:A retrospective study was conducted on biopsies obtained from 1953-2018 at 3 Brazilian oral and maxillo...
journal_title：Journal of endodontics
pub_type： 杂志文章,多中心研究
doi：10.1016/j.joen.2020.01.003
更新日期：2020-04-01 00:00:00
abstract：INTRODUCTION:In a clinical situation, an apically resected tooth is often accompanied by a varying degree of periodontal bone loss. The purpose of this study was to assess the influence of apical root resection combined with periodontal bone loss on the biomechanical response of a single-rooted tooth. METHODS:A basic ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2014.11.011
更新日期：2015-03-01 00:00:00
abstract：INTRODUCTION:The radicular groove is clinically significant due to its relevance to onset of inflammatory processes in the periodontal tissues. This study examined anatomic features of radicular grooves by using micro-computed tomography (micro-CT) scans. METHODS:Eleven extracted permanent maxillary lateral incisors w...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2011.03.002
更新日期：2011-06-01 00:00:00
abstract：:The purpose of this study was to determine the incidence of endodontic services provided to participants in a longitudinal cohort study. The "Florida Dental Care Study" was a prospective cohort study using a representative baseline sample of 873 dentate adults. An in-person interview and clinical dental exam were cond...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/00004770-200312000-00005
更新日期：2003-12-01 00:00:00
abstract：INTRODUCTION:Root canal therapy is a highly successful in-office treatment and preventive measure against periapical abscesses. Left untreated, periapical abscesses can have serious consequences that can lead to hospitalization. This study observes the trends of hospitalizations attributed to periapical abscesses. MET...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2013.04.042
更新日期：2013-09-01 00:00:00
abstract：:This study attempts to evaluate the oral manifestations of and the limited available dental pulp information on diabetes mellitus, a common metabolic disorder of carbohydrate and lipid metabolism affecting over 16 million Americans. Diabetics are particularly prone to bacterial or opportunistic infections. This vulner...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1097/00004770-200306000-00001
更新日期：2003-06-01 00:00:00
abstract：INTRODUCTION:The aim of the present study was to investigate the influence of root-end preparation and filling material on endodontic surgery outcome. A systematic review and meta-analysis was conducted to determine the outcome of resin-based endodontic surgery (RES, the use of high-magnification preparation of a shall...
journal_title：Journal of endodontics
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.joen.2018.02.021
更新日期：2018-06-01 00:00:00
abstract：:Biofilm mode of growth is a strategy in microorganisms to survive harsh growth conditions. Although previous studies have established the ability of Enterococcus faecalis to survive postendodontic environmental conditions, the effect of such conditions on the ultrastructural and physiochemical features of E. faecalis ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1097/01.don.0000164855.98346.fc
更新日期：2005-12-01 00:00:00
abstract：:This report presents an unusual indication for root resection of a lower molar tooth and also reviews the history of root resection. ...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1097/00004770-200004000-00016
更新日期：2000-04-01 00:00:00
abstract：:The purpose of this study was to compare three engine driven (nickel-titanium) NiTi instrument systems with hand files for their effect on canal transportation. Mesial roots of mature lower first molars with separate canals were paired on the basis of curvature and morphology. Canal lengths were standardized to 11 mm ...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/S0099-2399(97)80310-X
更新日期：1997-08-01 00:00:00
abstract：INTRODUCTION:This study aimed to compare the physicochemical and biological properties of premixed calcium silicate-based endodontic sealers with other conventional root canal filling materials by systematically reviewing laboratory studies. METHODS:The search was conducted in 3 databases (Medline via PubMed, Scopus, ...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/j.joen.2016.11.019
更新日期：2017-04-01 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.2007.07.002
更新日期：2008-05-01 00:00:00
abstract：:Although many options are proposed for the treatment of cracked posterior teeth, most treatment decisions are not evidence based. Thus, considerable individual variation can occur regarding treatment recommendations for the same scenario. To our knowledge, there are no studies in the literature assessing practitioners...
journal_title：Journal of endodontics
pub_type： 杂志文章
doi：10.1016/j.joen.2017.03.029
更新日期：2017-09-01 00:00:00
abstract：:This report presents a rare case of odontogenic cutaneous sinus tract caused by a vertical root fracture. The root-fractured molar was probably caused by an accidental blow by a cow 3 years ago. Despite all treatments by physicians and surgeons for nearly 1 year, the sinus tract recurred repeatedly. After diagnosis an...
journal_title：Journal of endodontics
pub_type： 杂志文章,评审
doi：10.1016/s0099-2399(06)81130-1
更新日期：1997-09-01 00:00:00
