Pulp response after application of two resin modified glass ionomer cements (RMGICs) in deep cavities of prepared human teeth

Costa, Carlos Alberto de Souza; Ribeiro, Ana Paula D.; Giro, Elisa María Aparecida; Randall, Ros C.; Hebling, Josimeri

doi:10.1016/j.dental.2011.04.002

Cited by 40 publications

(31 citation statements)

References 41 publications

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“…Each material was mixed according to the manufacturers' instructions, injected into circular metal molds (ø = 5 mm; height 2 mm), covered with a Mylar strip and a glass slide, and allowed to set for the recommended time (Table 1). Resin surface sealant was applied to EF specimens and light-cured for 20 s. PC was syringed into metal molds and covered with a Mylar strip, after which the resin was polymerized using a Demi light-curing unit (Kerr, Danbury, CT, USA) with a light output of 625 mW/cm 2 for 40 s. The power of the curing unit was measured using a radiometer (Demetron; Kerr) to ensure that light output exceeded 400 mW/cm 2 .…”

Section: Specimen Preparationmentioning

confidence: 99%

Physicomechanical properties of a zinc-reinforced glass ionomer restorative material

et al. 2014

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We compared a zinc-reinforced glass ionomer restorative material (ChemFil Rock) with three commercially available glass ionomer cements (GICs), namely, Fuji IX GP Extra, Ketac Molar Quick Aplicap, and EQUIA Fil, with respect to fracture toughness, microhardness, roughness, and abrasive wear. Fracture toughness (K IC ) was tested according to ISO 13586 (n = 10). Hardness, roughness, and abrasive wear were also tested (n = 9). Data were analyzed using the Wilcoxon rank-sum test with adjustment for multiple comparisons (α = 0.05). As compared with the other GICs ChemFil Rock exhibited a greater increase in surface roughness (P < 0.05) and lower microhardness (P < 0.01). The wear resistance of ChemFil Rock was comparable to that of the other GICs (P > 0.05). ChemFil Rock had significantly lower fracture toughness as compared with EQUIA Fil (P = 0.01) and significantly higher fracture toughness as compared with the other GICs (P < 0.02). In conclusion, as compared with the three other commercially available GICs, ChemFil Rock had intermediate fracture toughness, the lowest microhardness, and the greatest change in surface roughness. (J Oral Sci 56, 11-16, 2014)

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Section: Specimen Preparationmentioning

confidence: 99%

Physicomechanical properties of a zinc-reinforced glass ionomer restorative material

et al. 2014

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“…Since the tooth-bleaching process is mediated by ROS, which can diffuse through the enamel and dentin, reaching the pulp space [2], these aesthetic procedures can promote pulp alterations, such as mild inflammation or even partial necrosis [3][4][5]. Due to the deleterious effects caused by components of bleaching agents, which have been demonstrated in both in vitro [6][7][8][9][10] and in vivo studies [3,5,11], the evaluation of other bleaching techniques that can prevent or reduce pulp damage is needed.…”

Section: Introductionmentioning

confidence: 99%

Effect of low-level laser therapy on odontoblast-like cells exposed to bleaching agent

et al. 2013

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The aim of the present study was to evaluate the effect of low-level laser therapy (LLLT) on odontoblast-like MDPC-23 cells exposed to carbamide peroxide (CP 0. 01 %-2.21 μg/mL of H 2 O 2 ). The cells were seeded in sterile 24-well plates for 72 h. Eight groups were established according to the exposure or not to the bleaching agents and the laser energy doses tested (0, 4, 10, and 15 J/cm 2 ). After exposing the cells to 0.01 % CP for 1 h, this bleaching solution was replaced by fresh culture medium. The cells were then irradiated (three sections) with a near-infrared diode laser (InGaAsP-780±3 nm, 40 mW), with intervals of 24 h. The 0.01 % CP solution caused statistically significant reductions in cell metabolism and alkaline phosphate (ALP) activity when compared with those of the groups not exposed to the bleaching agent. The LLLT did not modulate cell metabolism; however, the dose of 4 J/cm 2 increased the ALP activity. It was concluded that 0.01 % CP reduces the MDPC-23 cell metabolism and ALP activity. The LLLT in the parameters tested did not influence the cell metabolism of the cultured cells; nevertheless, the laser dose of 4 J/cm 2 increases the ALP activity in groups both with and without exposure to the bleaching agent.

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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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Pulp response after application of two resin modified glass ionomer cements (RMGICs) in deep cavities of prepared human teeth

Cited by 40 publications

References 41 publications

Physicomechanical properties of a zinc-reinforced glass ionomer restorative material

Physicomechanical properties of a zinc-reinforced glass ionomer restorative material

Effect of low-level laser therapy on odontoblast-like cells exposed to bleaching agent

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

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