Comparative Evaluation of Microleakage Among Three Different Glass Ionomer Types

Halim, Sahar Abd El; Zaki, Dalia Y.

doi:10.2341/10-123-lr

Cited by 32 publications

(42 citation statements)

References 13 publications

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“…[2223] Some authors have suggested that because of the small surface area of the particles (approximately 0.52 nm 2 ), methylene blue may lead to an overestimation of leakage at tooth-restoration interfaces. [24] However, study by Ernst et al . underlined a correlation between SEM analysis and 30-min immersion in methylene blue, especially for enamel margins.…”

Section: Discussionmentioning

confidence: 99%

“…[24] However, this method is influenced by the scorer's ability to evaluate substrate infiltration and poor inter-examiner reliability has been reported, highlighting the subjective nature of evaluating microleakage by numerically scoring dye penetration. [25] To address this issue in the present in vitro study, the percentage of marginal leakage was calculated with the help of image analysis software.…”

Section: Discussionmentioning

confidence: 99%

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Microleakage at enamel and dentin margins with a bulk fills flowable resin

et al. 2014

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Objective:The aim of this in vitro study was to evaluate the marginal sealing ability of a bulk fill flowable resin composite on both enamel and dentin substrates.Materials and Methods:48 non-carious molars were selected and four Class-V cavities were prepared at the CEJ of each sample. Cavities were filled with Venus Diamond (Heraeus Kulzer); Venus Diamond Flow (Heraeus Kulzer) and Surefil SDR (Dentsply). Samples were divided into two groups: First group samples were immersed in a methylene blue solution for 30 min at 25°C. Second group samples were artificially aged and then treated with methylene blue. Samples were sectioned in the center of the restoration and observed with a 40x stereomicroscope, and the percentage of cavity infiltration was calculated.Results:Results were analyzed statistically by ANOVA (P < 0.05). The amount of infiltration was significantly lower for the enamel substrate compared with dentin (P = 0.0001) and in samples immediately immersed in methylene blue compared with those that were artificially aged (P = 0.011). The interaction between the composite material and the marginal substrate significantly affected dye penetration (P = 0.006).Conclusions:Bulk fill flowable resins provided significantly better marginal seal in dentin, both before and after artificial ageing. Nanohybrid resin composites and bulk fill flowable resins showed similar microleakage values at enamel margins. Bulk fills flowable resins provided significantly better marginal seal in dentin, both before and after artificial ageing. Nanohybrid resin composites and bulk fill flowable resins showed similar microleakage values at enamel margins.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Microleakage at enamel and dentin margins with a bulk fills flowable resin

et al. 2014

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“…Abd El Halim [28] reported that higher magnification of the bond interface of nano-filled RMGI showed an indistinct interface between the margin of the tooth structure and the restoration, suggesting that a chemical bond had formed between the GIC and tooth.…”

Section: Discussionmentioning

confidence: 99%

Comparative evaluation of microleakage in Class V cavities using various glass ionomer cements: An in vitro study

Gupta

Saraswathi

et al. 2012

J Interdiscip Dentistry

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“…Some studies demonstrated higher bond strengths values for the resin-modified GIC and have associated this finding to the use of an acidic primer. 26,27 This component is able to modify the smear layer and wet the dental surface to improve the interaction between the material and the substrate. However, this result was not observed in the current study, possibly because of the prior application of polyacrylic acid to the dentin substrate before the use of the conventional GIC.…”

Section: Discussionmentioning

confidence: 99%

Eroded dentin does not jeopardize the bond strength of adhesive restorative materials

et al. 2012

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This in vitro study evaluated the bond strength of adhesive restorative materials to sound and eroded dentin. Thirty-six bovine incisors were embedded in acrylic resin and ground to obtain flat buccal dentin surfaces. Specimens were randomly allocated in 2 groups: sound dentin (immersion in artificial saliva) and eroded dentin (pH cycling model -3× / cola drink for 7 days). Specimens were then reassigned according to restorative material: glass ionomer cement (Ketac TM Molar Easy Mix), resin-modified glass ionomer cement (Vitremer TM ) or adhesive system with resin composite (Adper Single Bond 2 + Filtek Z250). Polyethylene tubes with an internal diameter of 0.76 mm were placed over the dentin and filled with the material. The microshear bond test was performed after 24 h of water storage at 37°C. The failure mode was evaluated using a stereomicroscope (400×). Bond strength data were analyzed with two-way ANOVA and Tukey's post hoc tests (α = 0.05). Eroded dentin showed bond strength values similar to those for sound dentin for all materials. The adhesive system showed the highest bond strength values, regardless of the substrate (p < 0.0001). For all groups, the adhesive/ mixed failure prevailed. In conclusion, adhesive materials may be used in eroded dentin without jeopardizing the bonding quality. It is preferable to use an etch-and-rinse adhesive system because it shows the highest bond strength values compared with the glass ionomer cements tested.

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Comparative Evaluation of Microleakage Among Three Different Glass Ionomer Types

Abstract: The light-curing nanofilled glass ionomer (Ketac N100) showed the least microleakage.

Cited by 32 publications

References 13 publications

Microleakage at enamel and dentin margins with a bulk fills flowable resin

Microleakage at enamel and dentin margins with a bulk fills flowable resin

Comparative evaluation of microleakage in Class V cavities using various glass ionomer cements: An in vitro study

Eroded dentin does not jeopardize the bond strength of adhesive restorative materials

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