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Ensanya Ali Abou Neel,Anne M. Young.Journal of Biomedical Research,2017,31(3):264-272
Setting kinetics and mechanical properties of flax fibre reinforced glass ionomer restorative materials
Received:January 15, 2016  
DOI£º10.7555/JBR.31.20150023
Keywords£ºsetting kinetics, flax fibre, glass ionomer cements
Grant Program£º
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AuthorInstitution
Ensanya Ali Abou Neel Division of Biomaterials, Conservative Dental Sciences Department, King Abdualziz University, Jeddah 21589, Saudi Arabia; Biomaterials Department, Faculty of Dentistry, Tanta University, Tanta, Egypt; Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London WC1X 8LD, UK.
Anne M. Young Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London WC1X 8LD, UK
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Abstract £º
      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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