Effect of particle size of an amorphous calcium phosphate filler on the mechanical strength and ion release of polymeric composites.

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Soo-Young LeeD Skrtic

Abstract

The random clustering of amorphous calcium phosphate (ACP) particles within resin matrices is thought to diminish the strength of their polymerized composites. The objective of this study was to elucidate the effect of ball-milling on the particle size distribution (PSD) of ACP fillers and assess if improved dispersion of milled ACP in methacrylate resin sufficiently enhanced filler/matrix interactions to result in improved biaxial flexure strength (BFS), without compromising the remineralizing potential of the composites. Unmilled and wet-milled zirconia-hybridized ACP (Zr-ACP) fillers were characterized by PSD analysis, X-ray diffraction, thermogravimetric and chemical analysis, infrared spectroscopy, and scanning electron microscopy. Composite specimens made from a photoactivated, ternary methacrylate resin admixed with a mass fraction of 40% of un-milled or milled Zr-ACP were evaluated for the BFS (dry and wet) and for the release of calcium and phosphate ions into saline solutions. While having no apparent effect on the structure, composition, and morphology/topology of the fillers, milling significantly reduced the average size of Zr-ACP particulates (median diameter, d(m) = 0.9 +/- 0.2 microm) and the spread of their PSD...Continue Reading

References

Oct 1, 1991·Journal of Biomedical Materials Research·S Venz, B Dickens
Jan 1, 1990·Journal of Dental Research·A J FeilzerC L Davidson
Jan 1, 1994·Dental Materials : Official Publication of the Academy of Dental Materials·D C Sarrett, S Ray
Jan 1, 1996·Journal of Biomedical Materials Research·D W Jones, A S Rizkalla
Sep 1, 1996·Dental Materials : Official Publication of the Academy of Dental Materials·D SkrticE D Eanes
Aug 6, 1998·Biomaterials·Q LiuC A van Blitterswijk
Feb 19, 1999·Dental Materials : Official Publication of the Academy of Dental Materials·M S ParkD Skrtic
Jul 18, 2000·Journal of Biomedical Materials Research·D SkrticG E Schumacher
Jan 5, 2002·Journal of Biomedical Materials Research·D SkrticR T Brunworth
Jan 1, 2003·Journal of Research of the National Institute of Standards and Technology·D SkrticE D Eanes

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Citations

May 13, 2008·Journal of Materials Science. Materials in Medicine·Joseph M AntonucciJeffrey W Stansbury
Jul 13, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Danijela MarovicGottfried Schmalz
Sep 23, 2011·Dental Materials : Official Publication of the Academy of Dental Materials·Liang ChenHao Li
Dec 25, 2008·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Justin N R O'DonnellDrago Skrtic
Nov 22, 2011·Journal of Functional Biomaterials·Drago Skrtic, Joseph M Antonucci
Nov 2, 2018·Dental Materials Journal·Abdul Samad Khan, Mariam Raza Syed
Aug 22, 2009·Journal of Adhesion Science and Technology·J M AntonucciD Skrtic
Jan 31, 2017·Journal of Functional Biomaterials·Diane R BienekDrago Skrtic
Aug 25, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·Roberto Ruggiero Braga

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