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. Author manuscript; available in PMC: 2009 Apr 1.
Published in final edited form as: Dent Mater. 2008 Dec 20;25(4):535–542. doi: 10.1016/j.dental.2008.10.009

Figure 1.

Figure 1

Tetracalcium phosphate (TTCP), Ca4(PO4)2O, particle diameter vs. ball milling time. The median (50th percentile) particle sizes were 16.2 μm, 2.4 μm, 1.3 μm, and 0.97 μm, respectively. These particles were used as fillers in dental resin to release Ca and PO4 ions to inhibit tooth caries.