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Effects Of Nano-Sized Monocalcium Phosphate Monohydrate Fillers on Ca-and-PO4-Releasing Dental Composites

Published

Author(s)

Hockin D. Xu, Limin Sun, Michael Weir, Shozo Takagi, Laurence C. Chow, B Hockey

Abstract

Clinical data indicate that secondary caries and restoration fracture are the most common problems facing dental resin composites. The objective of this study was to combine whiskers with nano-sized MCPM (monocalcium phosphate monohydrate) particles in dental resins with the MCPM to release Ca and PO4 ions to combat secondary caries. The following mass ratios of MCPM:silicon carbide whiskers were tested: 1:0, 2:1, 1:1, 1:2, and 0:1. The composites were immersed for 1 d to 56 d to measure Ca and PO4 ion release. When the MCPM:whisker ratio was changed from 0:1 to 1:2 and to 1:0, the composite flexural strength (mean sd; n = 5) significantly decreased from (174 26) MPa to (138 9) MPa and to (38 11) MPa (p
Citation
Journal of Biomedical Materials Research Part B-Applied Biomaterials
Volume
81B

Keywords

Ca and PO4 ion release, dental composite, nanoparticles, remineralization, tooth caries, whisker reinforcement

Citation

Xu, H. , Sun, L. , Weir, M. , Takagi, S. , Chow, L. and Hockey, B. (2006), Effects Of Nano-Sized Monocalcium Phosphate Monohydrate Fillers on Ca-and-PO<sub>4</sub>-Releasing Dental Composites, Journal of Biomedical Materials Research Part B-Applied Biomaterials, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852584 (Accessed May 26, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created May 10, 2006, Updated February 17, 2017