2017
DOI: 10.1111/eos.12365
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Abstract: The aim of this study was to evaluate the effect of maleic acid (MA) on both the bond strength of fibre post to root dentine and smear layer removal after post space preparation. Sixty, single-canal premolars were endodontically treated and randomly assigned to four groups: group 1 [0.9% saline solution (control]); group 2 [2.5% sodium hypochlorite (NaOCl)]; group 3 [17% ethylenediaminetetraacetic acid (EDTA) followed by 2.5% NaOCl]; and group 4 (7% MA followed by 2.5% NaOCl). Self-adhesive resin cement was us… Show more

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Cited by 9 publications
(8 citation statements)
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“…20,24 In a recent study, the citric acid showed lower effect on dentin microhardness and did not change the resistance to fracture of the endodontically treated teeth compared with EDTA. 28 However, other authors suggested that EDTA is used as a demineralizing agent for being a weak acid and perform a controlled demineralization of dentin, allowing the maintenance of the integrity of collagen fibers and the majority of intrafibrillar mineral. 12,18 Some authors claim that the NaOCl may also lead to a shorter union resistance values when used adhesive systems, while those who used the NaOCl with EDTA association, verified best results, 17,29 and also may increase the union resistance of self-conditioning adhesive systems.…”
Section: Discussionmentioning
confidence: 99%
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“…20,24 In a recent study, the citric acid showed lower effect on dentin microhardness and did not change the resistance to fracture of the endodontically treated teeth compared with EDTA. 28 However, other authors suggested that EDTA is used as a demineralizing agent for being a weak acid and perform a controlled demineralization of dentin, allowing the maintenance of the integrity of collagen fibers and the majority of intrafibrillar mineral. 12,18 Some authors claim that the NaOCl may also lead to a shorter union resistance values when used adhesive systems, while those who used the NaOCl with EDTA association, verified best results, 17,29 and also may increase the union resistance of self-conditioning adhesive systems.…”
Section: Discussionmentioning
confidence: 99%
“…27 With different findings from previous studies, some authors showed lower values in union resistance when previous use of EDTA, which could be related to the methodology used or to the concentrations of the solution. 11,28 Other studies highlighted that the removal of the smear layer was unfavorable to the adhesion of the resinous sealer to the root dentin when a self-conditioning system was used, which can be explained by the different composition of the dentinal surface resulting from the treatment with EDTA, becoming more demineralized, and hindering the formation of a stable adhesive interface between the resinous sealer and the radicular dentin, since the hybrid layer formed by these systems is thinner. 13,17,18,[28][29][30] The limitation of this study may be related to the distribution and density of the dentinal tubules in the different root regions.…”
Section: Discussionmentioning
confidence: 99%
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“…After debonding, the fractured surfaces of ceramic specimens were examined under a stereomicroscope (SMZ800 N; Nikon). The failure modes were classified into three types [35,36]: type I, adhesive failure, no resin cement remanent on the ceramics; type II, mixed failure, failure line comprises both ceramic material and resin cement (i.e., ceramic and resin cement visible partially); and type III, cohesive failure, fracture occurred in resin cement, fracture surface consists of only resin cement.…”
Section: Methodsmentioning
confidence: 99%