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

Abou Neel, E; Young, AM; (2017) Setting kinetics and mechanical properties of flax fibre reinforced glass ionomer restorative materials. The Journal of Biomedical Research , 31 (1) pp. 1-9. 10.7555/JBR.31.20150023. Gold open access

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Abstract

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.

Type: Article
Title: Setting kinetics and mechanical properties of flax fibre reinforced glass ionomer restorative materials
Open access status: An open access publication
DOI: 10.7555/JBR.31.20150023
Publisher version: http://dx.doi.org/10.7555/JBR.31.20150023
Language: English
Additional information: This version is the author version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Setting kinetics, flax fibre, glass ionomer cements
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Eastman Dental Institute
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Eastman Dental Institute > Biomaterials and Tissue Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1534613
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