Push-out bond strength and SEM evaluation of new polymeric root canal fillings

Onay, Emel Olga; Üngör, Mete; Arı, Hale; Bellí, Sema; Öğüş, Ersin

doi:10.1016/j.tripleo.2009.01.023

Cited by 33 publications

(40 citation statements)

References 33 publications

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“…It was suggested that, if a material bonds to the root canal walls, it resists dislodgement of the filling 8 . It is also believed that chemical bonding to root dentin improves the push out bond strength of sealers to root canal walls 9 . In this study, the push-out test was used to test the dentin bond strength of different root canal sealers.…”

Section: Discussionmentioning

confidence: 99%

Comparative evaluation of push-out bond strength of a MTA-based root canal sealer

Gurgel‐Filho¹,

Leite²,

Lima³

et al. 2014

Braz. J. Oral Sci.

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. Methods: Thirty extracted single-root human teeth of similar sizes and circular canals were prepared using #3 and #2 Gates Glidden drills in the cervical portion of the canal and K3 ® rotary instruments to a size #25/0.06 to working length. Irrigation with 0.5 mL 2% chlorhexidine gel was used before and 1 mL saline after each instrument. The smear layer was removed with 3 mL 17% EDTA for 3 min. The samples were sectioned horizontally into eight 1±0.1 mm-thick serial slices and then the push-out test was carried out. Two-way analysis of variance (ANOVA) and the post-hoc Tukey test were used for the analysis of the data with a significance level of 5%. Results: AH Plus presented significantly higher bond strengths (p<0.05) than the other sealers, while MTA Fillapex showed the lowest bond strengths (p<0.05). Conclusions: The present study concluded that EndoFill ® sealer and MTA FillApex ® core combination were not superior to AH Plus ® sealer and gutta-percha core combination.

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Section: Discussionmentioning

confidence: 99%

Comparative evaluation of push-out bond strength of a MTA-based root canal sealer

Gurgel‐Filho¹,

Leite²,

Lima³

et al. 2014

Braz. J. Oral Sci.

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“…29 The unpredictable bond between Epiphany and root canal dentine has been attributed to polymerisation shrinkage, 30 incomplete sealer-polymerisation as a result of residual uncured monomer, 31 or as a result of the complex mechanical and anatomical challenge of root canal bonding. [32][33][34] Therefore, at present the clinical reality of a 'monoblock' is questionable. [35][36][37] Early studies compared the fracture resistance of roots obturated with Resilon/ Epiphany compared to gutta-percha and an epoxy resin sealer.…”

Section: Fracture Resistance/root Strengtheningmentioning

confidence: 99%

Root canal filling using Resilon: a review

Shanahan

Duncan

2011

Br Dent J

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“…21 In addition, the Resilon/ RealSeal obturation system showed acceptable push-out bond strength when used with new polymeric endodontic obturation systems. 17 Two separate studies effectively showed higher fracture resistance of teeth obturated with the Resilon/RealSeal system than of teeth obturated with gutta-percha/zinc oxide eugenol, gutta-percha/AH26, or gutta-percha/AH plus. 20,22 Considering the effects of the Er,Cr:YSGG laser on smear layer removal and the potential effects on bond strength of resin-based sealers, the aim of the present study was to evaluate the effect of Er,Cr:YSGG laser irradiation on the push-out bond strength of Resilon/RealSeal SE sealer compared with a treatment using 17% EDTA + 5.25% NaOCl as the standard protocol.…”

mentioning

confidence: 99%

“…15,16 In order to achieve an optimal seal between root canal fillings and canal walls, the bond strength of the filling material to dentin should be as high as possible. 17 The development of the ResilonÒ urethane dimethacrylate (UDMA)-based root filling system has offered many advantages over conventional root canal fillings with guttapercha. 18 A stronger bond between root filling and canal wall is produced with the aid of this system, the result of which is reduced apical leakage, likely increased fracture resistance, and improved clinical longevity of root-filled teeth.…”

mentioning

confidence: 99%

“…18 A stronger bond between root filling and canal wall is produced with the aid of this system, the result of which is reduced apical leakage, likely increased fracture resistance, and improved clinical longevity of root-filled teeth. 17,19,20 RealSeal is a dual-curing methacrylate resin-based sealer in which the resin matrix consists of bisphenol-A-glycidyl methacrylate (BisGMA), ethoxylated BisGMA, UDMA, and hydrophilic difunctional methacrylate. The sealer bonds to core material and dentin using a primer.…”

mentioning

confidence: 99%

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The Effect of Er,Cr:YSGG Laser Irradiation on the Push-Out Bond Strength of RealSeal Self-Etch Sealer

Ehsani

Bolhari²,

Etemadi³

et al. 2013

Photomedicine and Laser Surgery

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Objective: The aim of this study was to evaluate the effect of an erbium, chromium: yttrium-scandium-galliumgarnet (Er,Cr:YSGG) laser on the push-out bond strength of RealSeal Self-Etch (SE) sealer. Background data: Various methods are used for smear layer removal in endodontics, such as the application of Er,Cr:YSGG lasers. This laser system may influence the bond strength of resin-based sealers. Methods: Sixty single-rooted extracted teeth were selected. After root canal preparation, samples were divided into two experimental groups and one positive control group (n = 20 per group). In group 1, the smear layer was removed by irrigation with ethylenediaminetetraacetic acid (EDTA) and sodium hypochlorite (NaOCl). In group 2, the smear layer was removed using a 2.78 lm Er,Cr:YSGG laser with radial firing tips (RFT3) (parameters: 1.5W, 140 ls, 20 Hz, and 15% water to 15% air ratio), moving at 2 mm/sec in an apico-coronal direction. Group 3 served as a positive control group. Five specimens from each group were selected for scanning electron microscope (SEM) observation. The remaining 45 roots were obturated with RealSeal SE/Resilon and subjected to push-out tests. Data were analyzed using one way analysis of variance (ANOVA) and Tamhane's test. Results: The results showed no significant difference between push-out bond strength of root canal fillings in the EDTA + NaOCl group and the 1.5W laser group ( p > 0.05). The positive control group showed the lowest push-out bond strength. Conclusions: The results of the present study indicate that the application of an Er,Cr:YSGG laser with radial firing tips did not adversely affect the push-out bond strength of RealSeal SE sealer to dentin.

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Push-out bond strength and SEM evaluation of new polymeric root canal fillings

Cited by 33 publications

References 33 publications

Comparative evaluation of push-out bond strength of a MTA-based root canal sealer

Comparative evaluation of push-out bond strength of a MTA-based root canal sealer

Root canal filling using Resilon: a review

The Effect of Er,Cr:YSGG Laser Irradiation on the Push-Out Bond Strength of RealSeal Self-Etch Sealer

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