Xu, H.
, Sun, L.
, Weir, M.
, Antonucci, J.
, Takagi, S.
, Chow, L.
and Peltz, M.
(2006),
Nano Dicalcium Phosphate Anhydrous-Whisker Composites With High Strength and Ca and PO<sub>4</sub> Release, Journal of Dental Research, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852580
(Accessed October 20, 2025)
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Nano Dicalcium Phosphate Anhydrous-Whisker Composites With High Strength and Ca and PO4 Release
Published
Author(s)
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Abstract
The main challenges facing composite restorations are secondary caries and bulk fracture. The objective of this study was to investigate the Ca and PO4 release and strength of whisker-reinforced composites containing nano-sized dicalcium phosphate anhydrous (DCPA, CaHPO4) particles. A spray-drying process was used to synthesize the nano DCPA particles. Flexural strength (mean ? sd; n = 5) for the composite containing 2-hydroxyethyl methacrylate (HEMA) at DCPA:whisker mass ratio = 1:2 was (156 ? 11) MPa. It was similar to (148 ? 9) MPa for the composite without HEMA, and (167 ? 23) MPa for the heat-cured composite (p > 0.1). They were higher than (103 ? 32) MPa of an inlay/onlay control and (118 ? 22) MPa of a hybrid control (pCitation
Journal of Dental Research
Volume
85
Issue
8
Pub Type
Journals
Download Paper
Keywords
Ca and PO4 release, dental resin composite, nano particles, strength, whiskers
Citation
Issues
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Created August 1, 2006, Updated February 17, 2017