Effect of Conventional and Resin-modified Glass-Ionomer Liner on Dentin Adhesive Interface of Class I Cavity Walls After Thermocycling

Sampaio, Paula Costa Pinheiro; Júnior, Amorim; Francisconi, Luciana Fávaro; Casas-Apayco, Leslie; Pereira, José Carlos; Wang, Linda; Atta, Maria Teresa

doi:10.2341/09-240-l

Cited by 35 publications

(53 citation statements)

References 42 publications

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“…by means of a physicochemical interaction without prior treatment (1). However, studies have reported improvements in the bond strength (BS) of these materials to dentin after surface conditioning with various solutions (1,3).…”

Section: Influence Of Thicknesses Of Smear Layer On the Transdentinalmentioning

confidence: 99%

“…However, studies have reported improvements in the bond strength (BS) of these materials to dentin after surface conditioning with various solutions (1,3). The aim of conditioning is to remove contaminants and the smear layer that is usually formed during cavity preparation, which may interfere in the bonding of RMGICs to dental tissues (4).…”

Section: Influence Of Thicknesses Of Smear Layer On the Transdentinalmentioning

confidence: 99%

“…Resin-modified glass-ionomer cements (RMGICs) were developed from the combination of conventional GIC formulation with polymerizable hydrophilic monomers of resin-based materials (1). These dental materials have been widely used as cavity liners and bases as well as for restoration of cavities with different depths where a biological seal and cariostatic action are needed, with excellent clinical outcomes (2).…”

Section: Introductionmentioning

confidence: 99%

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Influence of thicknesses of smear layer on the transdentinal cytotoxicity and bond strength of a resin-modified glass-ionomer cement

et al. 2012

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This study evaluated the transdentinal cytotoxicity (TC) and the bond strength (BS) of a resin-modified glass-ionomer cement (RMGIC) applied to dentin covered with smear layer (SL) of different thicknesses. Forty dentin discs had thick (TSL) or thin (THSL) smear layer created on their occlusal side. In artificial pulp chambers, MDPC-23 cells were seeded on the pulpal side of the dentin discs and divided into five groups: G1TC: no treatment (control); G2TC: TSL + RMGIC; G3TC: THSL + RMGIC; G4TC: TSL removal + RMGIC; G5TC: THSL removal + RMGIC. After 24 h, cell metabolism and morphology were evaluated by the methyltetrazolium (MTT) assay and by scanning electron microscopy (SEM), respectively. For BS, the following groups were determined: G1BS: TSL removal + RMGIC; G2BS: THSL removal + RMGIC; G3BS: TSL + RMGIC; G4BS: THSL + RMGIC. Shear bond strength was tested to failure in a mechanical testing machine MTS (0.5 mm/min). Statistically significant difference was observed only between the control and experimental groups (Kruskal-Wallis, p<0.05). The metabolic activity of the viable MDPC-23 cells in G2TC, G3TC, G4TC and G5TC decreased by 54.85%, 60.79%, 64.12% and 62.51%, respectively. Mean shear bond strength values for G1BS, G2BS, G3BS and G4BS were 7.5, 7.4, 6.4 and 6.7 MPa, respectively, without significant difference among them (ANOVA, p>0.05). RMGIC presented moderate transdentinal cytotoxic effects. Maintenance or removal of smear layer did not affect the bond strength of RMGIC to dentin substrate.

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Section: Influence Of Thicknesses Of Smear Layer On the Transdentinalmentioning

confidence: 99%

Section: Influence Of Thicknesses Of Smear Layer On the Transdentinalmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of thicknesses of smear layer on the transdentinal cytotoxicity and bond strength of a resin-modified glass-ionomer cement

et al. 2012

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“…These materials aim to encourage the formation of tertiary dentin and remineralization as well as improve the marginal integrity of composite restorations 8,12) . Glassionomer cements (GICs), RMGICs, flowable resin composite, calcium hydroxide (Ca[OH]), adhesive systems and bioactive Biodentine have been utilized as cavity liners 13,14) to provide the stress buffering capacity for reducing the contraction stress and gap formation at the dentin/resin adhesive interface 15) . Dentin substitute/ replacement materials included in this study are: SDR which is intended to be used as a liner under direct class I and II restorations and class II box, Biodentine which is indicated in deep or large carious lesions, deep cervical lesions and pulp capping, MultiCore which is indicated for core build-up of vital and non-vital teeth and Fuji II LC which is indicated as a liner and restoration of class III, V and limited class I cavities and primary teeth.…”

Section: Introductionmentioning

confidence: 99%

Shear bond strength of different dentin substitute restorative materials to dentin of primary teeth

et al. 2016

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This in vitro investigation compared the shear bond strength (SBS) of four dentin substitute/replacement materials to caries-affected dentin of primary teeth. Dentin surfaces were randomly divided into four groups of 12 each according to the material used as follows: SDR/Smart Dentin Replacement, Biodentine, Multicore Flow, and Fuji II LC. The SBS was measured and failure modes were determined. There was a statistically significant difference in the mean values of SBS among the four materials (F=741.523, p<0.0001). The mean values of SBS of SDR were statistically significantly higher followed by Multicore Flow compared to the other groups. The mean values of the four materials were significantly different from each other in all combinations of pairs of four materials. The SBS between the four dentin substitute/replacement materials to dentin of primary teeth was significantly different. The highest SBS was for SDR followed by Multicore Flow then Fuji II LC and the lowest was for Biodentine.

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“…In this context, it is reported that the use of a glass ionomer as liner material caused a significant reduction in the cusp deflection compared with composite resin restorations without liner [2]. Sampaio et al [46] observed that the use of RMGIC as liner resulted in lower crack formation on dentin/adhesive interface after laboratorial aging.…”

Section: Gic Mechanical Propertiesmentioning

confidence: 99%

Indications and restorative techniques for glass ionomer cement

Rizzante¹,

Cunali

Bombonatti³

et al. 2016

RSBO

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Introduction: Due to its chemical, mechanical and biological properties, the glass ionomer cements (GIC) consist in one of the most versatile direct restorative materials, with many potential clinical indications, especially in the context of minimally invasive dentistry. Nevertheless, they have some limitations and require the knowledge of their characteristics and procedures of application in order to achieve their maximum potential. Objective: To demonstrate through literature review the main characteristics, indications, limitations and future perspectives for the use of GIC. Literature review: The database, such as Pubmed and Lilacs were used. Additionally, books were also evaluated and included. Conclusion: The GIC is in constant evolution and is one of the materials that are best suited in the context of preventive and conservative dentistry. It has satisfactory properties and versatility. On the other hand, presents inferior properties when compared to other direct restorative materials, requiring caution during its handling.

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Effect of Conventional and Resin-modified Glass-Ionomer Liner on Dentin Adhesive Interface of Class I Cavity Walls After Thermocycling

Abstract: Lining with RMGIC resulted in less gap formation at the dentin/resin adhesive interface after artificial aging. RMGIC or GIC liners did not alter the microtensile bond strength of adhesive system/resin composite to dentin on the lateral walls of Class I restorations.

Cited by 35 publications

References 42 publications

Influence of thicknesses of smear layer on the transdentinal cytotoxicity and bond strength of a resin-modified glass-ionomer cement

Influence of thicknesses of smear layer on the transdentinal cytotoxicity and bond strength of a resin-modified glass-ionomer cement

Shear bond strength of different dentin substitute restorative materials to dentin of primary teeth

Indications and restorative techniques for glass ionomer cement

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