Influence of oval and circular post placement using different resin cements on push-out bond strength and void volume analysed by micro-CT.


AIM:To evaluate the percentage volume of voids within cement layers, to determine the push-out bond strength of circular and oval fibre posts luted with different commercial resin cements in oval cross-sectional root canals, and to correlate push-out bond strength values and volume of voids of circular and oval fibre posts. METHODOLOGY:Seventy-two mandibular premolars with oval-shaped root canals were selected. The specimens were divided into two main groups according to the post type (oval and circular). Groups were further divided into three subgroups (n = 24) according to resin cement type: Maxcem Elite, Rely-X Unicem and Duo-Link. The volumes of voids within the cements were analysed by micro-computed tomography (micro-CT). The bond strength was then measured using a push-out test with an Instron universal testing machine. The failure modes were evaluated. Statistical analyses were performed using a three-way anova, Tukey's post hoc, Pearson's correlation and chi-square test (P = 0.05). RESULTS:The push-out bond strength values were significantly affected by root canal region, post type and cement type (P < 0.001). Root canal region, post type and cement type also significantly affected void volume (P < 0.001). There was a significant interaction between post type and cement type (P < 0.001). The most frequent failure type was adhesive failure in all the groups. There was no significant correlation between the push-out bond strength and void volume (P > 0.05). CONCLUSIONS:Void volume did not affect push-out bond strength of oval and circular posts luted in oval canals.


Int Endod J


Uzun I,Keleş A,Arslan H,Güler B,Keskin C,Gündüz K




Has Abstract


2016-12-01 00:00:00












  • Characterization of set Intermediate Restorative Material, Biodentine, Bioaggregate and a prototype calcium silicate cement for use as root-end filling materials.

    abstract:AIM:To investigate the composition of materials and leachate of a hydrated prototype cement composed of tricalcium silicate and radiopacifier and compare this to other tricalcium silicate-based cements (Biodentine and Bioaggregate) to assess whether the additives in the proprietary brand cements affect the hydration of...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Grech L,Mallia B,Camilleri J

    更新日期:2013-07-01 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


    authors: Gordon MP,Love RM,Chandler NP

    更新日期:2005-02-01 00:00:00

  • Endodontic treatment of primary teeth using a combination of antibacterial drugs.

    abstract:AIM:To evaluate the clinical outcome of 'Lesion Sterilization and Tissue Repair' (LSTR) therapy for endodontic treatment of primary teeth. METHODOLOGY:A mixture of metronidazole, ciprofloxacin, and minocycline (3Mix) in ointment (macrogol mixed with propylene glycol: MP) or in a root canal sealer was used to disinfect...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Takushige T,Cruz EV,Asgor Moral A,Hoshino E

    更新日期:2004-02-01 00:00:00

  • European Society of Endodontology position statement: Management of deep caries and the exposed pulp.

    abstract::This position statement on the management of deep caries and the exposed pulp represents the consensus of an expert committee, convened by the European Society of Endodontology (ESE). Preserving the pulp in a healthy state with sustained vitality, preventing apical periodontitis and developing minimally invasive biolo...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: European Society of Endodontology (ESE) developed by:.,Duncan HF,Galler KM,Tomson PL,Simon S,El-Karim I,Kundzina R,Krastl G,Dammaschke T,Fransson H,Markvart M,Zehnder M,Bjørndal L

    更新日期:2019-07-01 00:00:00

  • Wear profile of canal wall surfaces and bond strength of endodontic sealers after in situ acid challenge.

    abstract:AIM:To evaluate the wear of root wall surfaces, the bond strength of sealers to dentine and the demineralization around root filling materials after canals were exposed to acid challenge in situ. METHODOLOGY:Eighty-seven roots of mandibular incisors were selected. Thirty-two were used in the laboratory bond strength s...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Silva-Neto RD,Sousa-Neto MD,Pécora JD,Palma-Dibb RG,Souza-Gabriel AE

    更新日期:2018-03-01 00:00:00

  • Ten-year follow-up of root filled teeth: a radiographic study of a Danish population.

    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


    authors: Kirkevang LL,Vaeth M,Wenzel A

    更新日期:2014-10-01 00:00:00

  • Anti-adhesive and pro-apoptotic effects of 2-hydroxyethyl methacrylate on human gingival fibroblasts co-cultured with Streptococcus mitis strains.

    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


    authors: Zara S,Di Giulio M,D'Ercole S,Cellini L,Cataldi A

    更新日期:2011-12-01 00:00:00

  • A tactile method for canal length determination in teeth with open apices.

    abstract:AIM:To present a tactile method for working length determination in teeth with open apices and to determine its accuracy and repeatability. METHODOLOGY:Ninety teeth with 129 root canals were prepared to create open apices. The correct working length (CWL) for each canal was determined by introducing a file into the ro...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: ElAyouti A,Dima E,Löst C

    更新日期:2009-12-01 00:00:00

  • Quality of thermoplasticized and single point root fillings assessed by micro-computed tomography.

    abstract:AIM:To evaluate ex vivo the quality of root fillings completed by two thermoplasticized gutta-percha techniques (Thermafil and System B) and a cold gutta-percha technique (single point) by μCT analysis. METHODOLOGY:A total of 30 freshly extracted human single-rooted permanent teeth were selected. Root canals were prep...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Somma F,Cretella G,Carotenuto M,Pecci R,Bedini R,De Biasi M,Angerame D

    更新日期:2011-04-01 00:00:00

  • Ex vivo comparison of two electronic apex locators with different scales and frequencies.

    abstract:AIM:To compare ex vivo the accuracy of two impedance quotient apex locators with different scales and frequencies of the measuring circuit. METHODOLOGY:In each root of 193 extracted human teeth, electronic working length determination (ELD) was carried out with a newly constructed measuring unit. In all cases, ELD was...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Hör D,Krusy S,Attin T

    更新日期:2005-12-01 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


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

    更新日期:2007-05-01 00:00:00

  • Methodological considerations in the determination of working length.

    abstract:AIM:The aim of this study was to evaluate the diagnostic efficacy of an electronic system for the determination of working length, in comparison with two radiological methods (conventional film and digital radiography). METHODOLOGY:The study sample consisted of 28 root canals belonging to 20 human mandibular teeth. A ...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Martínez-Lozano MA,Forner-Navarro L,Sánchez-Cortés JL,Llena-Puy C

    更新日期:2001-07-01 00:00:00

  • Scanning electron microscope appearances of Lightspeed instruments used clinically: a pilot study.

    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


    authors: Marending M,Lutz F,Barbakow F

    更新日期:1998-01-01 00:00:00

  • Quantitative microleakage study on a new retrograde filling technique.

    abstract::An in vitro endodontic leakage model was used to compare the sealing ability of conventional retrograde amalgam fillings with a new retrograde filling technique by measuring dye leakage quantitatively. The new technique consisted of retrograde preparation of the root canal using the Endocursor, an endodontic handpiece...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Wu MK,Kean SD,Kersten HW

    更新日期:1990-09-01 00:00:00

  • Temperature and surface changes of dentine and cementum induced by CO2 laser exposure.

    abstract::The thermal effects of a CO2 laser on the external root surface and inside the root canal were studied in vitro by means of computerized infrared (IR) thermography and a digital thermometer. One-hundred-and-eighty tooth roots with single root canals were irradiated internally and externally with laser power set at 0.5...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Anić I,Dzubur A,Vidović D,Tudja M

    更新日期:1993-09-01 00:00:00

  • Fracture patterns of glass-ionomer cement overlays versus stainless steel bands during endodontic treatment: an ex-vivo study.

    abstract:AIM:To compare fracture patterns of posterior teeth temporized with: mesio-occlusal-distal (MOD) glass-ionomer cement (GIC) interim restorations, stainless steel (SS) bands, GIC dome overlays and GIC dome overlays with occlusal temporary restorations. METHODOLOGY:The root canals of 92 extracted human premolars and mol...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Pakdeethai S,Abuzar M,Parashos P

    更新日期:2013-12-01 00:00:00

  • Cyclic fatigue resistance and three-dimensional analysis of instruments from two nickel-titanium rotary systems.

    abstract:AIM:To determine how instrument design affects the fatigue life of two nickel-titanium (Ni-Ti) rotary systems (Mtwo and ProTaper) under cyclic fatigue stress in simulated root canals. METHODOLOGY:Cyclic fatigue testing of instruments was performed in stainless steel artificial canals with radii of curvature of 2 or 5 ...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Grande NM,Plotino G,Pecci R,Bedini R,Malagnino VA,Somma F

    更新日期:2006-10-01 00:00:00

  • Effect of sodium hypochlorite on mechanical properties of dentine and tooth surface strain.

    abstract:AIM:The aim of this study was to test the null hypothesis that sodium hypochlorite irrigation of root canals does not alter the properties of dentine and contribute to the weakening of root-treated teeth. METHODOLOGY:The effect of two concentrations (0.5%, 5.25%) of sodium hypochlorite (NaOCl) and saline on (i) the el...

    journal_title:International endodontic journal

    pub_type: 临床试验,杂志文章,随机对照试验


    authors: Sim TP,Knowles JC,Ng YL,Shelton J,Gulabivala K

    更新日期:2001-03-01 00:00:00

  • Influence of nickel-titanium rotary systems with varying tapers on the biomechanical behaviour of maxillary first premolars under occlusal forces: a finite element analysis study.

    abstract:AIM:To evaluate the effect of three nickel-titanium (Ni-Ti) rotary systems with varying tapers on stress distribution and to analyse potential fracture patterns as well as the volume of fracture-susceptible regions in two-rooted maxillary premolars. METHODOLOGY:The root canals of three single-rooted premolars were pre...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Askerbeyli Örs S,Serper A

    更新日期:2018-05-01 00:00:00

  • Clinical influence of calcium hydroxide and N-acetylcysteine on the levels of resolvins E1 and D2 in apical periodontitis.

    abstract:AIM:To investigate the presence of resolvins E1 (RvE1) and D2 (RvD2) in teeth with primary endodontic infections and apical periodontitis, and to assess the influence of calcium hydroxide medication [Ca(OH)2 ], in association with 2% chlorhexidine gel (2% CHX gel), and N-acetylcysteine (NAC) on the levels of RvE1 and R...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Corazza BJM,Martinho FC,Khoury RD,Toia CC,Orozco EIF,Prado RF,Machado FP,Valera MC

    更新日期:2021-01-01 00:00:00

  • Modification of mineral trioxide aggregate. Physical and mechanical properties.

    abstract:AIM:To evaluate the physical and mechanical properties of two cements with a similar chemical composition to mineral trioxide aggregate and to attempt to improve their properties by producing a composite material. METHODOLOGY:Two cement types were used: a mixture of calcium sulpho-aluminate cement and Portland cement ...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Camilleri J

    更新日期:2008-10-01 00:00:00

  • Fracture resistance of thin-walled roots restored with different post systems.

    abstract:AIM:To compare the fracture resistance of thin-walled roots after restoration with different types of post systems. METHODOLOGY:One hundred and sixty-five decoronated maxillary central incisors were root filled and randomly assigned to three groups with respect to the remaining dentine thickness of root (1.0 mm, 1.5 m...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Kivanç BH,Alaçam T,Ulusoy OI,Genç O,Görgül G

    更新日期:2009-11-01 00:00:00

  • Comparison of two laser Doppler systems on the measurement of blood flow of premolar teeth under different pulpal conditions.

    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


    authors: Mesaros S,Trope M,Maixner W,Burkes EJ

    更新日期:1997-05-01 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


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

    更新日期:2014-05-01 00:00:00

  • Extraoral endodontic treatment, odontotomy and intentional replantation of a double maxillary lateral permanent incisor: case report and 6-year follow-up.

    abstract:AIM:To describe combined endodontic, surgical and orthodontic treatment of a maxillary lateral incisor fused with a supernumerary. SUMMARY:Double tooth is a dental irregularity consequent to fusion of two or more teeth or dental gemination. The teeth most commonly involved are deciduous, but in 0.1% of cases permanent...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Sivolella S,Bressan E,Mirabal V,Stellini E,Berengo M

    更新日期:2008-06-01 00:00:00

  • Periapical healing of mandibular molars after root-end sealing with dentine-bonded composite.

    abstract:AIM:The purpose was to present the frequency of periapical healing in first and second/third mandibular molars, after root-end resections sealed with a dentine-bonded resin composite. METHODOLOGY:Root-end sealing of resected mandibular molar roots was made with dentine-bonded composite (Gluma-Retroplast) as a cover on...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Rud J,Rud V,Munksgaard EC

    更新日期:2001-06-01 00:00:00

  • The adaptation of mechanically softened gutta-percha to the canal walls in the presence or absence of smear layer: a scanning electron microscopic study.

    abstract::The objective of this study was to compare the adaptation of mechanically softened gutta-percha to the root canal wall in the presence and absence of smear layer. The root canals of 20 freshly extracted human maxillary incisors were cleaned and shaped. Prior to obturation, 10 root canals were irrigated with 20 ml of 5...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Pallarés A,Faus V,Glickman GN

    更新日期:1995-09-01 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



    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

  • Radiopacity of root filling materials using digital radiography.

    abstract:AIM:To evaluate radiopacity of root filling materials using digital radiography. METHODOLOGY:The sealers tested were AH Plus, Endofill, EndoREZ and Epiphany. Gutta-percha (Dentsply Maillefer) and Resilon cones were also tested. Acrylic plates, containing six wells, measuring 1 mm in depth and 5 mm in diameter, were pr...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Carvalho-Junior JR,Correr-Sobrinho L,Correr AB,Sinhoreti MA,Consani S,Sousa-Neto MD

    更新日期:2007-07-01 00:00:00

  • Capacity of anaerobic bacteria enclosed in a simulated root canal to induce inflammation.

    abstract::In an effort to simulate the infected dental root canal, bacteria were enclosed in polyethylene tubes that were subcutaneously implanted into rats. Four different bacterial combinations, selected from nine oral species, were tested. The contents of 144 inoculated and implanted 'root canals' were analysed after 2 and 4...

    journal_title:International endodontic journal

    pub_type: 杂志文章


    authors: Wu MK,Moorer WR,Wesselink PR

    更新日期:1989-11-01 00:00:00