Reliability of different electronic apex locators to detect root perforations in vitro.

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. Detection of all perforations were carried out with K-files attached to the apex locators tested. The teeth were radiographed after each electronic measurement. The actual location of the tip of the file in relation to the external root surface and the radiographic determination of the perforations were carried out using a stereomicroscope. The mean distance of the tip of the file from the external outline of the root surface was short for all instruments and clinically acceptable (0.06-0.25 mm). There was no clinically significant difference between the morphometric measurements and the radiographic measurements. No statistical significance was found between large perforations (0.55-0.60 mm) and small perforations (0.25-0.40 mm). Under the conditions of this study, all electronic apex locators tested were acceptable clinical tools in the detection of root perforations.

journal_name

Int Endod J

authors

Kaufman AY,Fuss Z,Keila S,Waxenberg S

doi

10.1046/j.1365-2591.1997.00107.x

subject

Has Abstract

pub_date

1997-11-01 00:00:00

pages

403-7

issue

6

eissn

0143-2885

issn

1365-2591

journal_volume

30

pub_type

杂志文章
  • The shear bond strength of glass ionomer cement sealers to bovine dentine conditioned with common endodontic irrigants.

    abstract:AIM:The aim of this in vitro study was to evaluate the shear bond strength of commercially available and experimental glass ionomer cement (GIC) sealers to dentine exposed to common endodontic irrigants. METHODOLOGY:The enamel of 90 bovine incisor crowns, randomly divided into nine equal groups, was ground to expose t...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1046/j.1365-2591.1999.00238.x

    authors: Lalh MS,Titley K,Torneck CD,Friedman S

    更新日期:1999-11-01 00:00:00

  • Melatonin levels in human diabetic dental pulp tissue and its effects on dental pulp cells under hyperglycaemic conditions.

    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

    authors: Milosavljević A,DJukić L,Toljić B,Milašin J,DŽeletović B,Brković B,Roganović J

    更新日期:2018-10-01 00:00:00

  • Relationship between unintentional canal overfilling and the long-term outcome of primary root canal treatments and nonsurgical retreatments: a retrospective radiographic assessment.

    abstract:AIM:To determine retrospectively the long-term radiographic outcome of root canal treatments and root canal retreatments with unintentional root canal overfilling. METHODOLOGY:A total of 220 root canal treatments (143 primary/77 retreatments) with postoperative unintentional canal overfilling and performed by two endo...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/iej.13209

    authors: Goldberg F,Cantarini C,Alfie D,Macchi RL,Arias A

    更新日期:2020-01-01 00:00:00

  • An in vitro investigation into the effects of retained coronal dentine on the strength of a tooth restored with a cemented post and partial core restoration.

    abstract:AIM:This study aimed to examine the fracture resistance of teeth restored with cast post and partial cores supported by different heights of coronal tooth structure. METHODOLOGY:Four specimen groups were prepared. Group A was the control and consisted of 10 single-rooted teeth restored with post and cores cemented in ...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1046/j.1365-2591.2002.00596.x

    authors: Al-Wahadni A,Gutteridge DL

    更新日期:2002-11-01 00:00:00

  • Effect of EDTA conditioning upon the retention of fibre posts luted with resin cements.

    abstract:AIM:To determine if a final rinse with EDTA improves the short-term in-tooth retentive strength of adhesively luted fibre-reinforced composite posts. METHODOLOGY:Six different commercial fibre post systems were tested. Post spaces in extracted human anterior teeth were irrigated with either 6% NaOCl or 6% NaOCl follow...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/j.1365-2591.2008.01482.x

    authors: Rasimick BJ,Shah RP,Musikant BL,Deutsch AS

    更新日期:2008-12-01 00:00:00

  • The effect of TRPM7 suppression on the proliferation, migration and osteogenic differentiation of human dental pulp stem cells.

    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

    authors: Cui L,Xu SM,Ma DD,Wu BL

    更新日期:2014-06-01 00:00:00

  • Impact of remaining zinc oxide-eugenol-based sealer on the bond strength of a resinous sealer to dentine after root canal retreatment.

    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

    authors: Rached-Junior FJ,Sousa-Neto MD,Souza-Gabriel AE,Duarte MA,Silva-Sousa YT

    更新日期:2014-05-01 00:00:00

  • Effect of root canal sealers on bond strength of fibreglass posts cemented with self-adhesive resin cements.

    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

    authors: Cecchin D,Farina AP,Souza MA,Carlini-Júnior B,Ferraz CC

    更新日期:2011-04-01 00:00:00

  • Mineral trioxide aggregate suppresses pro-inflammatory cytokine expression via the calcineurin/nuclear factor of activated T cells/early growth response 2 pathway in lipopolysaccharide-stimulated macrophages.

    abstract:AIM:To elucidate mechanisms by which mineral trioxide aggregate (MTA) suppresses pro-inflammatory cytokine mRNA expression in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. METHODOLOGY:Mineral trioxide aggregate extracts were prepared by immersing set ProRoot MTA in culture medium. RAW264.7 cells were cultu...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/iej.13386

    authors: Kuramoto M,Kawashima N,Tazawa K,Nara K,Fujii M,Noda S,Hashimoto K,Nozaki K,Okiji T

    更新日期:2020-12-01 00:00:00

  • Comparison of working length determination with radiographs and two electronic apex locators.

    abstract:AIM:To evaluate the accuracy of the Root ZX and Elements-Diagnostic electronic apex locators when compared with radiographs for locating the canal terminus or minor foramen. METHODOLOGY:The canal terminus of 482 canals in 160 maxillary and mandibular teeth was located in vivo with both locators and radiographically. A...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/j.1365-2591.2009.01620.x

    authors: Vieyra JP,Acosta J,Mondaca JM

    更新日期:2010-01-01 00:00:00

  • Toll-like receptor 2 expression in refractory periapical lesions.

    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

    authors: Desai SV,Love RM,Rich AM,Seymour GJ

    更新日期:2011-10-01 00:00:00

  • The influence of irrigating solutions on the accuracy of the electronic apex locator facility in the Tri Auto ZX handpiece.

    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

    authors: Erdemir A,Eldeniz AU,Ari H,Belli S,Esener T

    更新日期:2007-05-01 00:00:00

  • Physicochemical and mechanical properties of zirconium oxide and niobium oxide modified Portland cement-based experimental endodontic sealers.

    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

    authors: Viapiana R,Flumignan DL,Guerreiro-Tanomaru JM,Camilleri J,Tanomaru-Filho M

    更新日期:2014-05-01 00:00:00

  • The antibacterial properties of four elements released from dental restorative materials.

    abstract::The antibacterial activity of four elements (zinc, copper, fluoride and mercury), previously reported to be released from dental restorative materials, was investigated. This was carried out using two aerobic micro-organisms isolated from dentine beneath cavities in the ferret. These were grown in the presence of the ...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/j.1365-2591.1989.tb00499.x

    authors: Nourollahi M,Meryon SD

    更新日期:1989-01-01 00:00:00

  • An in-vitro investigation of the antibacterial effect of nisin in root canals and canal wall radicular dentine.

    abstract:AIM:To determine whether nisin, a bacteriocin, would be effective at killing Enterococcus faecalis and Streptococcus gordonii cells in solution and within the root canal system. METHODOLOGY:Bacterial isolates of E. faecalis and S. gordonii were grown from glycerol stocks in closed tubes containing BHY broth at 37 degr...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/j.1365-2591.2004.00846.x

    authors: Turner SR,Love RM,Lyons KM

    更新日期:2004-10-01 00:00:00

  • Investigation of the root canal configuration of mandibular first molars in a Taiwan Chinese population.

    abstract:AIM:To investigate the root form and canal morphology of mandibular first molar teeth in a Taiwan Chinese population. METHODOLOGY:A total of 183 mandibular first molars were collected and examined visually through a dissecting microscope after rendering the teeth transparent. The number of roots, number of canals and ...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/j.1365-2591.2009.01619.x

    authors: Chen G,Yao H,Tong C

    更新日期:2009-11-01 00:00:00

  • Inflammatory potential of monospecies biofilm matrix components.

    abstract:AIM:To assess the inflammatory potential of biofilm matrix constituents of Enterococcus faecalis and Pseudomonas aeruginosa monospecies biofilms on macrophages. METHODOLOGY:In vitro biofilms of E. faecalis and P. aeruginosa were grown (7 days) in aerobic and anaerobic conditions. The biofilm matrix components: exopoly...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/iej.13093

    authors: Ramirez T,Shrestha A,Kishen A

    更新日期:2019-07-01 00:00:00

  • Coronal restoration of the root filled tooth - a qualitative analysis of the dentists' decision-making process.

    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

    authors: Dawson VS,Fransson H,Wolf E

    更新日期:2020-11-07 00:00:00

  • Influence of cusp coverage on the fracture resistance of premolars with endodontic access cavities.

    abstract:AIM:To assess the influence of cusp reduction and coverage with composite resin on the fracture resistance of premolars with prepared access cavities. METHODOLOGY:Endodontic access cavities were prepared in 60 premolar teeth that were divided into four test groups: R1, R2, R3 and NR (n=15). In all test groups, MOD cav...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/j.1365-2591.2011.01859.x

    authors: ElAyouti A,Serry MI,Geis-Gerstorfer J,Löst C

    更新日期:2011-06-01 00:00:00

  • Successful pulp revascularization of an autotransplantated mature premolar with fragile fracture apicoectomy and plasma rich in growth factors: a 3-year follow-up.

    abstract:AIM:This case report demonstrates a positive outcome of the adjuvant use of fragile fracture (FF), which is a technique used to harvest dental pulp stem cells (DPSCs), and platelet-rich plasma (PRP) in a mandibular premolar (tooth 44) with a completely formed root that was transplanted into a surgically created socket ...

    journal_title:International endodontic journal

    pub_type:

    doi:10.1111/iej.13230

    authors: Gaviño Orduña JF,García García M,Dominguez P,Caviedes Bucheli J,Martin Biedma B,Abella Sans F,Manzanares Céspedes MC

    更新日期:2020-03-01 00:00:00

  • Ex vivo evaluation of the accuracy of two electronic apex locators during root canal length determination in primary teeth.

    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

    authors: Leonardo MR,Silva LA,Nelson-Filho P,Silva RA,Raffaini MS

    更新日期:2008-04-01 00:00:00

  • An evaluation of .06 tapered gutta-percha cones for filling of .06 taper prepared curved root canals.

    abstract:AIM:To compare the area occupied by gutta-percha, sealer, or void in standardized .06 tapered prepared simulated curved canals and in mesio-buccal canals of extracted maxillary first molars filled with a single .06 gutta-percha point and sealer or lateral condensation of multiple .02 gutta-percha points and sealer. ME...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/j.1365-2591.2004.00903.x

    authors: Gordon MP,Love RM,Chandler NP

    更新日期:2005-02-01 00:00:00

  • Focal cemento-osseous dysplasia involving a mandibular lateral incisor.

    abstract:AIM:To report a case of focal cemento-osseous dysplasia (FCOD) affecting a single tooth misdiagnosed as an inflammatory periapical lesion. SUMMARY:The patient, a black 47-year-old woman complained of pain affecting the right side of the mandible. Routine X-ray examination discovered a periapical radiolucency on the ma...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/j.1365-2591.2003.00736.x

    authors: Galgano C,Samson J,Küffer R,Lombardi T

    更新日期:2003-12-01 00:00:00

  • Variability of physicochemical properties of an epoxy resin sealer taken from different parts of the same tube.

    abstract:AIM:To analyse several physicochemical properties of AH Plus (Dentsply DeTrey, Konstanz, Germany), including setting time, flow, radiopacity and the degree of conversion (DC); and to correlate the results with the source of the material: from the beginning, middle or end of the tubes in which they were supplied. METHO...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/j.1365-2591.2012.02049.x

    authors: Baldi JV,Bernardes RA,Duarte MA,Ordinola-Zapata R,Cavenago BC,Moraes JC,de Moraes IG

    更新日期:2012-10-01 00:00:00

  • Influence of oestrogen deficiency on the development of apical periodontitis.

    abstract:AIM:To evaluate the effects of a long period of oestrogen deficiency on the development of apical periodontitis in rats. METHODOLOGY:Wistar rats (n = 24), 3 months old, evaluated by vaginal cytology, were included in the study. Twelve animals were ovariectomized (OVX group) and the other 12 were sham operated (control...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/iej.12612

    authors: Brasil SC,Santos RM,Fernandes A,Alves FR,Pires FR,Siqueira JF Jr,Armada L

    更新日期:2017-02-01 00:00:00

  • Nitric oxide induces apoptosis in human gingival fibroblast through mitochondria-dependent pathway and JNK activation.

    abstract:AIM:To investigate the molecular mechanisms of nitric oxide (NO)-induced cytotoxic effect in human gingival fibroblast (HGF) cells. METHODOLOGY:After sodium nitroprusside (SNP), as NO donor, was treated to HGF, viability was measured by MTT assay and apoptosis was determined by TUNEL and DNA fragmentation assay. Mitoc...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/iej.12314

    authors: Baek MW,Seong KJ,Jeong YJ,Kim GM,Park HJ,Kim SH,Chung HJ,Kim WJ,Jung JY

    更新日期:2015-03-01 00:00:00

  • Apatite-forming ability (bioactivity) of ProRoot MTA.

    abstract:AIM:Apatite-forming ability, considered as an index of bioactivity (bond-to-bone ability), was tested on ProRoot MTA cement after immersion in phosphate-containing solution (DPBS). METHODOLOGY:Disk samples were prepared and immersed in DPBS for 10 min, 5 h, 1 and 7 days. The cement surface was studied by attenuated to...

    journal_title:International endodontic journal

    pub_type: 杂志文章

    doi:10.1111/j.1365-2591.2010.01768.x

    authors: Gandolfi MG,Taddei P,Tinti A,Prati C

    更新日期:2010-10-01 00:00:00

  • XP-endo Finisher R instrument optimizes the removal of root filling remnants in oval-shaped canals.

    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

    authors: De-Deus G,Belladonna FG,Zuolo AS,Cavalcante DM,Carvalhal JCA,Simões-Carvalho M,Souza EM,Lopes RT,Silva EJNL

    更新日期:2019-06-01 00:00:00

  • The ability of cone-beam computed tomography to detect simulated buccal and lingual recesses in root canals.

    abstract:AIM:To compare the ability of cone-beam computed tomography (CBCT) and digital periapical radiographs (PR) to detect simulated tissue-occupied recesses in root canals. METHODOLOGY:A standard canal was created in 30 extracted mandibular premolar roots. Each root was longitudinally split into buccal and lingual halves. ...

    journal_title:International endodontic journal

    pub_type: 杂志文章,随机对照试验

    doi:10.1111/j.1365-2591.2012.02025.x

    authors: Liang YH,Yuan M,Li G,Shemesh H,Wesselink PR,Wu MK

    更新日期:2012-08-01 00:00:00

  • Radiographic evaluation of cases referred for surgical endodontics.

    abstract:AIM:The aim of this study is to test the hypothesis that more patients with failed root-canal treatment or other endodontic problems are referred for periradicular surgery rather than nonsurgical re-treatment. METHODOLOGY:Three sets of 100 periapical radiographs representing typical cases referred for surgical treatme...

    journal_title:International endodontic journal

    pub_type: 杂志文章,多中心研究

    doi:10.1046/j.1365-2591.2002.00510.x

    authors: Doornbusch H,Broersma L,Boering G,Wesselink PR

    更新日期:2002-05-01 00:00:00