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ERŞAHAN EROĞLU, ŞEYDA

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Type: Article × Author: AYDIN, Cumhur ×

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    Solubility and apical sealing characteristics of a new calcium silicate-based root canal sealer in comparison to calcium hydroxide-, methacrylate resin- and epoxy resin-based sealers
    (2013-05-01T00:00:00Z) Ersahan, Seyda; AYDIN, Cumhur; ERŞAHAN EROĞLU, ŞEYDA
    Aim. To assess and compare the water sorption, solubility and apical sealing ability of iRoot SP and three other widely used root canal sealers. Materials and methods. Solubility was assessed by immersing standardized samples of calcium silicate( iRoot SP), calcium hydroxide-(Sealapex), methacrylate resin- (EndoREZ) and epoxy resin-(AH Plus) based sealers in distilled water and measuring weight gain and weight loss at 6 h, 24 h and daily for 14 days. Roots of extracted mandibular premolars (n = 80) were prepared with 0.04-taper nickel-titanium rotary files to a final size 40. Roots were then randomly divided into four experimental groups (n = 18) and two control groups (n = 4), root canal sealers were applied and apical leakage was assessed using the fluid filtration method. Data was analyzed using Kruskal Wallis analysis of variance and Mann-Whitney U-tests, with the level of significance set at p <= 0.05. Results. EndoREZ exhibited the highest water sorption, followed by iRoot SP, Sealapex and AH Plus. Sealapex exhibited significantly higher solubility than the other sealers, whereas no significant differences in solubility levels were observed between the other three sealers tested. AH Plus exhibited significantly lower microleakage than Sealapex and EndoREZ, whereas no difference in microleakage was found between AH Plus and iRoot SP. Conclusions. In view of the study findings, all tested sealers except Sealapex met the ANSI/ADA-s requirements for solubility and no difference was found between AH Plus and iRoot SP in terms of apical sealing ability.
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    Dislocation Resistance of iRoot SP, a Calcium Silicate-based Sealer, from Radicular Dentine
    (2010-12-01T00:00:00Z) Ersahan, Seyda; AYDIN, Cumhur; ERŞAHAN EROĞLU, ŞEYDA
    Introduction: The aim of this study was to evaluate the push-out bond strength of iRoot SP (Innovative Bioceramix, Vancouver, Canada) and compare it with that of other widely used root canal sealers. Methods: Sixty extracted human maxillary canines were sectioned transversally below the cement-enamel junction to obtain 120 4-mm-thick dentin disks that were randomly divided into four groups (n = 30) for treatment with one of four different root-canal sealers (iRoot SP, AH Plus [Dentsply DeTrey GmbH, Konstanz, Germany], Sealapex [SybronEndo Corporation, Orange, CA], EndoREZ [Ultradent Inc, South Jordan, UT]). Standardized cavities were prepared to simulate root canals, cavities were filled with sealer material, and push-out bond-strength testing was performed using a universal testing machine. Failure modes were assessed quantitatively under a stereomicroscope and morphologically under a scanning electron microscope. Statistical analysis was performed using one-way analysis of variance and the post hoc Tukey test, with the significance level set at 0.05. Results: Bond strengths of iRoot SP and AH Plus were significantly higher than those of Sealapex and EndoREZ. There was no significant difference between the bond strength of iRoot SP and AH Plus (p = 0.274). Conclusions: iRoot SP and AN Plus performed similarly and better than EndoREZ and Sealapex in terms of bond strength. (J Endod 2010;36:2000 -2002)