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Nanoscale and Microscale Hardness of Hydroxyapatite – BisGMA/TEGDMA Composites

Published online by Cambridge University Press:  07 November 2013

Jesse E. Thompson ,
Jessica D. Kaufman  and
David S. Lee
Jesse E. Thompson
Affiliation:
Department of Physics and Engineering, Gordon College, Wenham, MA 01984, USA.
Jessica D. Kaufman
Affiliation:
Department of Biology and Biotechnology, Endicott College, Beverly, MA 01915, USA.
David S. Lee
Affiliation:
Department of Physics and Engineering, Gordon College, Wenham, MA 01984, USA.
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Abstract

We have investigated BisGMA-TEGDMA dental composites with varying mass fractions of hydroxyapatite and silica filler. Commercially available dental composites with 60% silica filler were synthesized in the presence of nanometer-sized hydroxyapatite crystals. We have compared the mechanical properties of BisGMA-TEGDMA samples filled with silica only and those filled with silica and hydroxyapatite particles. We report on hardness as a function of crystalline content as determined by nanoindentation and microindentation.

Keywords

nano-indentationbiomaterialcomposite
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1453: Symposium GG – Functional Hybrid Nanoparticles and Capsules with Engineered Structures and Properties , 2012 , mrss12-1453-gg09-03
Copyright
Copyright © Materials Research Society 2013 

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References

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