Evaluation of bond strength of various epoxy resin based sealers in oval shaped root canals

Çakıcı, Fatih; Çakıcı, Elif Bahar; Ceyhanli, Kadir Tolga; Çelik, Ersan; Küçükekenci, Funda Fundaoğlu; Gunseren, Arif Onur

doi:10.1186/s12903-016-0301-1

Cited by 10 publications

(14 citation statements)

References 14 publications

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“…Another factor that has been evaluated for its influence on the BS of endodontic sealers to the root canal is sealer penetration into the dentin tubules 34 . In the present study, SEM analysis revealed the formation of long tags for both types of sealers regardless of the evaluated period, which could indicate the absence of a relationship between the formation of tags and the BS of the sealers.…”

Section: Discussionmentioning

confidence: 99%

Chlorhexidine and proanthocyanidin enhance the long-term bond strength of resin-based endodontic sealer

et al. 2018

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The aim of this study was to evaluate the effects of proanthocyanidin (PA) and chlorhexidine (CHX) on the bond strength (BS), failure pattern, and resin-dentin interface morphology of the endodontic sealers EndoREZ and AH Plus after 24 h and 6 months of water storage. A total of 120 prepared bovine roots were divided into six groups: AH Plus, CHX+AH Plus, PA+AH Plus, EndoREZ, CHX+EndoREZ, and PA+EndoREZ. Dentin was treated for 1 or 5 min with 2% CHX or 15% PA, respectively. Roots were filled and stored in water for 24 h or 6 months (n = 10). Root slices were subjected to push-out test and scanning electron microscopy (SEM). Data were compared using two-way ANOVA and student's t-test (α = 5%). BS decreased over time for AH Plus and untreated EndoREZ (p < 0.05). At 24 h, AH Plus had higher BS than EndoREZ (p < 0.001), with no differences among treatments for both sealers (p > 0.05). At 6 months, EndoREZ had higher BS values for CHX and PA than control (p < 0.05). AH Plus had higher BS than EndoREZ (p < 0.001), while with CHX or PA, similar BS was observed in both sealers (p > 0.05). Cohesive and mixed failures were observed in all groups. SEM revealed sealer tags in the root dentin. In conclusion, BS decreased with time and AH Plus had higher BS than EndoREZ in untreated dentin; however, CHX or PA enhanced long-term BS of EndoREZ. Overall, dentin treatment affected failure pattern and resin-dentin interface morphology, particularly for EndoREZ.

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Section: Discussionmentioning

confidence: 99%

Chlorhexidine and proanthocyanidin enhance the long-term bond strength of resin-based endodontic sealer

et al. 2018

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“…1,23 Several studies have found diversity on the sealer bond strength values when the samples were examined with different root canal depthlevel sections. 13,19,23,29 Nonetheless, the current research used samples in the apical one-third that tended to show the lowest value of bond strength compared to the middle and coronal third. 3 The reduction in root canal diameter, anatomic variation, and vapour lock effect in the apical third interferes with the irrigation solution flow and makes removing the smear layer even more challenging.…”

Section: Discussionmentioning

confidence: 99%

“…14 The push-out test was conducted with a universal testing machine (TN 20 MD, France) with a 0.53 mm stainless-steel plunger (custom made) that pushed the filling material at a crosshead speed of 1 mm/min in apicalcoronal direction. 19 The bond strength was calculated by the following formula: 13 PBS = F / A Where: PBS = push-out bond strength (MPa), F = maximum load (N), A = bonding area of root canal filling (mm 2 ), calculated by the following formula: 20…”

Section: Methodsmentioning

confidence: 99%

Effect of different final irrigation solutions on push-out bond strength of root canal filling material

Rahmatillah¹,

Erlita²,

Maglenda³

2020

Dent. J.

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Background: The adhesion of root canal filling material to dentin is one of the crucial factors in determining the success of endodontic treatment. However, the smear layer that forms during instrumentation serves as an interface that impedes the bonding mechanism of the filling material. A proper irrigation solution is required to remove the smear layer and provide a dentin surface that supports the bonding mechanism of the filling material in establishing good adhesion. Purpose: This study aims to evaluate and compare the bond strength of filling material with different final irrigation solutions. Methods: Mandibular premolars were prepared by a crown down, pressure-less technique and divided into three final irrigation groups (2.5% NaOCl, 17% EDTA and 20% citric acid). The root canal of each tooth was obturated using epoxy sealer and gutta-percha. A two-millimetre-thick section of the apical third portion of each group was arranged for the push-out assessment using a universal testing machine in an apical to coronal direction at 1 mm/min crosshead speed. Results: A one-way ANOVA test indicated the difference in push-out bond strength among the groups (p<0.05). A post hoc Bonferroni test presented a statistically significant difference in the bond-strength value between the 2.5% NaOCl group compared with the 20% CA group (p<0.05). Conclusion: The push-out bond strength of root canal filling material is increased by applying a chelating agent as the final irrigation solution where 20% of CA presents the highest push-out bond strength.

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“…The variations in the root canal anatomy may lead to the misfit of the main GP cone, which may have been the cause for impaired bond strength. [ 11 23 ] The results of push-out bond strength studies may differ due to variation in material properties, obturation technique employed, methodology, type of UTM, size, and type of plunger and observer variation. The results of the present study are in collaboration with the studies conducted by Lee et al .,[ 24 ] Patil et al .,[ 25 ] Gade et al .…”

Section: Discussionmentioning

confidence: 99%

Comparative evaluation of push-out bond strength of gutta-percha using different sealers with lateral condensation and thermoplasticized obturation technique: An in vitro study

Ali¹,

Saha²,

Vijayvargiya³

et al. 2019

J Conserv Dent

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Aim: The study aimed to evaluate and compare the push-out bond strength of gutta-percha using AH plus, Endosequence BC, and Roeko seal sealer with lateral condensation and thermoplasticized obturation technique. Materials and Methods: Sixty single-rooted premolars were instrumented and samples were randomly assigned into three groups based on the sealer used (Group A-AH Plus, Group B-Endosequence BC, Group C-Roeko Seal) which were further divided into two subgroups-A1, B1, and C1 were obturated by the lateral condensation technique and A2, B2, and C2 using the thermoplasticized technique. Each sample was sectioned horizontally using a diamond disc, representing apical, middle, and coronal thirds, respectively. Root segments were then mounted on an acrylic block, and push-out bond strength of each sample was tested using the universal testing machine. Statistical Analysis: One-way ANOVA, Tukey's test, and unpaired t -test. Results: For mandibular premolar teeth with a single canal using lateral condensation technique, the highest push-out bond strength was found in the A1 group (7.30 ± 0.61 MPa) at the apical level. While using the thermoplasticized technique, the highest push-out bond strength was found in the B2 group (3.71 ± 0.81 MPa) at the apical level. Overall results showed that the lateral condensation technique showed significantly higher push-out bond strength than thermoplasticized technique ( P < 0.028). Conclusions: The push-out bond strength of AH Plus sealer was higher than the Endosequence BC sealer and Roeko seal sealer. Lateral condensation technique has shown higher push-out bond strength than the thermoplasticized technique.

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Evaluation of bond strength of various epoxy resin based sealers in oval shaped root canals

Cited by 10 publications

References 14 publications

Chlorhexidine and proanthocyanidin enhance the long-term bond strength of resin-based endodontic sealer

Chlorhexidine and proanthocyanidin enhance the long-term bond strength of resin-based endodontic sealer

Effect of different final irrigation solutions on push-out bond strength of root canal filling material

Comparative evaluation of push-out bond strength of gutta-percha using different sealers with lateral condensation and thermoplasticized obturation technique: An in vitro study

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