Efficacy of different irrigation regimes on the push-out bond strength of various resin-based sealers at different root levels: An in vitro study

Verma, Diksha; Taneja, Sonali; Kumari, Madhu

doi:10.4103/jcd.jcd_337_16

Cited by 22 publications

(24 citation statements)

References 22 publications

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“…The results are comparable to what has been reported previously that AV produced lower push out bond strength results due to its lower efficiency in smear layer removal than EDTA (31) . The lowest push out bond strength results recorded with normal saline are in agreement with another study stated that the use of chelating solutions enhanced the bond strength of AH Plus sealer (32) .…”

Section: Discussionsupporting

confidence: 90%

Evaluation of Intraradicular Surface Roughness Following Final Irrigation by Apple Vinegar and its Correlation with Resin Sealer Bond Strength

2020

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Purpose Assessment of the surface roughness of root canal and its correlation with Resin Sealer Bond Strength following final irrigation by apple vinegar. Material and methods 50 extracted lower premolars were selected and prepared using Universal ProTaper rotary files and 14 ml 2.6% NaOCL then the samples were equally distributed into 2 main groups (20 samples each) depending on the type of the final rinse. Group I: Apple vinegar (AV), Group II: 17 % Ethylenediamine tetra acetic acid (EDTA), Control group (10 samples): sterile saline. Each main group was further equally distributed into 2subgroups (10 samples each). Subgroup A: For surface roughness evaluation. Subgroup B: For push out bond strength evaluation. Surface roughness was evaluated using digital microscope. The push out bond strength test was carried on using universal testing machine. The sealer penetration inside the dentinal tubules was seen under scanning electron microscope (SEM) in selected samples. Results Regarding the results of subgroup A, at all levels, the highest value of the average roughness deviation (Ra) was recorded in samples treated with 17% EDTA, while the lowest value was recorded with the saline group and there was no statistical significant difference among the tested groups. Regarding the results of subgroup B, at all levels, the highest median push out bond strength was recorded in samples treated with 17% EDTA, while the lowest value was recorded with the saline group and there was no statistical significant difference among the tested groups except at the apical levels where the difference statistically significant among the tested groups. SEM observation of sealer/ dentin interface revealed few traces of sealer penetration with samples treated with 17% EDTA and AV. Conclusion EDTA 17% as a final rinse produced higher value of surface roughness compared to AV. The push out bond strength results of AV was comparable to that of 17%EDTA when applicated as a final rinse. There is a linear relation between Ra and the push out bond strength of resin sealer in Groups I, II.

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Section: Discussionsupporting

confidence: 90%

Evaluation of Intraradicular Surface Roughness Following Final Irrigation by Apple Vinegar and its Correlation with Resin Sealer Bond Strength

2020

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“…Alguns trabalhos ex vivo compararam as diferentes associações entre cones de guta-percha e Resilon com os cimentos endodônticos AH Plus e Epiphany, sob algumas metodologias, sendo observados resultados divergentes 1,[19][20][21][22] .…”

Section: Resultsunclassified

“…Trabalhos prévios verificaram menor infiltração em dentes obturados utilizando o sistema Resilon/Epiphany do que guta-percha/AH Plus 15,23,24 . No entanto, na presente pesquisa, independentemente da solução de irrigação adotada, observouse maior capacidade de seladora em raízes obturadas com cones de guta-percha e cimento AH Plus quando comparados aos espécimes preenchidos com o sistema Resilon/Epiphany, concordando com outros autores 14,19,21,25 . Esse resultado pode ter ocorrido devido à excelente adesão do cimento AH Plus às paredes dentinárias.…”

Section: Resultsunclassified

Influência de soluções irrigadoras e de materiais obturadores na infiltração apical – análise pelo método de filtração de fluidos

et al. 2019

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Introdução: o objetivo do presente trabalho foi avaliar, por meio do método de filtração de fluidos, a influência da solução irrigadora e diferentes associações de materiais obturadores na infiltração apical. Metodologia: foram utilizados 112 pré-molares inferiores extraídos, divididos em dois grupos controle (n=8) e oito grupos experimentais (n=12), de acordo com a solução irrigante: hipoclorito de sódio (H), vinagre de maçã (V), e, de acordo com o material obturador, guta-percha/AH Plus (GA), Resilon/Epiphany (RE), guta-percha/Epiphany (GE) e Resilon/AH Plus (RA). Os canais radiculares foram instrumentados e obturados pela técnica híbrida de Tagger. Em seguida, os canais foram desobturados nos terços médio e cervical, permanecendo apenas 4 mm do terço apical para a análise da infiltração pelo método de filtração de fluidos. Os dados foram analisados, estatisticamente, pelo teste de Kruskal-Wallis, sendo considerado significante quando P<0,05. Resultados: as médias obtidas de infiltração apical (μL/min) nos grupos foram: H/GA (0,03 ± 0,09), V/GA (0,04 ± 0,05), H/RE (0,06 ± 0,13), V/RE (0,10 ± 0,20), H/GE (0,08 ± 0,18), H/GE (0,16 ± 0,21), H/RA (0,40 ± 0,63) e V/RA (0,57 ± 1,13). Não foi observada diferença estatística quanto às soluções de irrigação aplicadas (P>0,05). No entanto, em relação aos materiais obturadores, verificou-se que os grupos obturados com a associação Resilon/AH Plus apresentaram, significativamente, maior infiltração que os demais grupos (P<0,05). Conclusões: concluiu-se que a infiltração apical foi influenciada apenas pelos materiais obturadores, independentemente da solução de irrigadora.

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“…26 In addition, 2.25% PAA used as the final rinse results in lower bond strength of AH Plus to dentin when compared to EDTA. 27 In addition to antimicrobial activity and smear layer removal, among other requisites, irrigants must favor or at least not harm the bond of root canal sealers to root dentin. 28 The high bond strength of root canal sealers to dentin helps maintain the integrity of the sealer-dentin interface and prevents debonding of the filling material during the operative procedures.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, specimens with oval-shaped root canals were not used; we selected roots with round cross-sections to have a similar amount of sealer wrapped around the gutta-percha cone, in accordance with previous studies. 27,31 Endodontic irrigants may affect the bond of sealers to root dentin 4 because they may lead to different demineralization patterns 16 and may change the composition of the dentin surface. 26 Studies have shown that AH Plus has a high bond strength to dentin when irrigation protocols using EDTA are used.…”

Section: Discussionmentioning

confidence: 99%

Effect of peracetic acid used as single irrigant on the smear layer, adhesion, and penetrability of AH Plus

et al. 2019

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The aim of this study was to evaluate the effect of peracetic acid (PAA) as a single irrigant on the smear layer, on the intraradicular dentinal bond strength, and on the penetrability of an epoxy-based resin sealer into the dentinal tubules. A total of 120 roots were distributed into 4 groups according to the irrigant used in root canal preparation: 1% PAA (PAA); 2.5% NaOCl followed by final irrigation with 17% EDTA and 2.5% NaOCl (NaOCl-EDTA-NaOCl); 2.5% NaOCl (NaOCl); and saline solution (SS). The smear layer was evaluated using scanning electron microscopy. The bond strength of an epoxy-based resin sealer (AH Plus) to root dentin was evaluated by the push-out test and penetrability of the sealer into dentinal tubules was observed by confocal laser microscopy. The results were analyzed by the Kruskal-Wallis and the Dunn post-test (α = 0.05). The use of 1% PAA as single root canal irrigant provided smear layer removal and improved the penetrability and bond strength of AH Plus to root dentin in a manner similar to that of the NaOCl-EDTA-NaOCl group (p > 0.05). The NaOCl and SS groups had higher values of smear layer and lower values of sealer penetrability and dentin bond strength than the PAA and NaOCl-EDTA-NaOCl groups (p < 0.05). Thus, 1% PAA has the potential to be used as a single irrigant in root canals.

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Efficacy of different irrigation regimes on the push-out bond strength of various resin-based sealers at different root levels: An in vitro study

Cited by 22 publications

References 22 publications

Evaluation of Intraradicular Surface Roughness Following Final Irrigation by Apple Vinegar and its Correlation with Resin Sealer Bond Strength

Evaluation of Intraradicular Surface Roughness Following Final Irrigation by Apple Vinegar and its Correlation with Resin Sealer Bond Strength

Influência de soluções irrigadoras e de materiais obturadores na infiltração apical – análise pelo método de filtração de fluidos

Effect of peracetic acid used as single irrigant on the smear layer, adhesion, and penetrability of AH Plus

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