Evaluation of glass ionomer cements properties obtained from niobium silicate glasses prepared by chemical process

Bertolini, Márcio José; Palma-Dibb, Regina Guenka; Zaghete, M. A.; Gimenes, Rossano

doi:10.1016/j.jnoncrysol.2005.01.040

Cited by 22 publications

(18 citation statements)

References 19 publications

(23 reference statements)

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“…The properties of cements prepared from these glasses were similar to the ones from commercially available cements, indicating that niobium can improve the mechanical characteristics of these materials [8]. Unlike the glasses reported in this study, commercial ionomer glasses contain fluoride because it improves the working characteristics of the cement paste and contributes to inhibit the secondary caries.…”

Section: Introductionsupporting

confidence: 57%

Development of an experimental glass ionomer cement containing niobium and fluoride

Bertolini

Zaghete

Gimenes

2005

Journal of Non-Crystalline Solids

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Section: Introductionsupporting

confidence: 57%

Development of an experimental glass ionomer cement containing niobium and fluoride

Bertolini

Zaghete

Gimenes

2005

Journal of Non-Crystalline Solids

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“…However, whilst their use in orthopedic applications has long been mooted, their non-dental clinical use has been limited to ear, nose and throat applications [10][11][12][13]. This is due to certain outages in their properties, including the following [2,14]: (a) Clinical literature supporting defective osteoneogenesis and fatal encephalopathy arising from aluminum ions (Al The majority of research into CGPCs has focused on changing the glass composition because it is capable of controlling both setting chemistry, strength [15,16] and ion release. However, the polyacid phase also plays a major role in controlling rheological (working and setting times) and mechanical properties, chemical adhesion to substrates, ion release and durability [17].…”

Section: Introductionmentioning

confidence: 99%

The role of poly(acrylic acid) in conventional glass polyalkenoate cements

Alhalawani

Curran

Boyd

et al. 2015

Journal of Polymer Engineering

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Abstract Glass polyalkenoate cements (GPCs) have been used in dentistry for over 40 years. These novel bioactive materials are the result of a reaction between a finely ground glass (base) and a polymer (acid), usually poly(acrylic acid) (PAA), in the presence of water. This article reviews the types of PAA used as reagents (including how they vary by molar mass, molecular weight, concentration, polydispersity and content) and the way that they control the properties of the conventional GPCs (CGPCs) formulated from them. The article also considers the effect of PAA on the clinical performance of CGPCs, including biocompatibility, rheological and mechanical properties, adhesion, ion release, acid erosion and clinical durability. The review has critically evaluated the literature and clarified the role that the polyacid component of CGPCs plays in setting and maturation. This review will lead to an improved understanding of the chemistry and properties of the PAA phase which will lead to further innovation in the glass-based cements field.

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“…Experimental GICs, based on niobium modified calcium fluoro-alumino-silicate glass powders, were prepared by sol-gel method in an attempt mainly to improve the mechanical properties and degradation resistance [8– 10] . These formulations have been initially shown to be biocompatible when injected subcutaneously, but further research is still required to verify their biocompatibility in the presence of dentin-pulp complex [11] .…”

Section: Introductionmentioning

confidence: 99%

Setting kinetics and mechanical properties of flax fibre reinforced glass ionomer restorative materials

Neel

Young

2017

J Biomed Res

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Regardless of the excellent properties of glass ionomer cements, their poor mechanical properties limit their applications to non-load bearing areas. This study aimed to investigate the effect of incorporated short, chopped and randomly distributed flax fibers (0, 0.5, 1, 2.5, 5 and 25 wt%) on setting reaction kinetics, and mechanical and morphological properties of glass ionomer cements. Addition of flax fibers did not significantly affect the setting reaction extent. According to their content, flax fibers increased the compressive (from 148 to 250 MPa) and flexure strength (from 20 to 42 MPa). They also changed the brittle behavior of glass ionomer cements to a plastic one. They significantly reduced the compressive (from 3 to 1.3 GPa) and flexure modulus (from 19 to 14 GPa). Accordingly, flax fiber-modified glass ionomer cements could be potentially used in high-stress bearing areas.

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Evaluation of glass ionomer cements properties obtained from niobium silicate glasses prepared by chemical process

Cited by 22 publications

References 19 publications

Development of an experimental glass ionomer cement containing niobium and fluoride

Development of an experimental glass ionomer cement containing niobium and fluoride

The role of poly(acrylic acid) in conventional glass polyalkenoate cements

Setting kinetics and mechanical properties of flax fibre reinforced glass ionomer restorative materials

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