Figure 9: Representative histograms showing pore size distribution in cements degraded in H2O ((a) and (b)), in PBS ((c) and (d)), and in serum solution ((e) and (f)). The black lines show a fit to a lognormal distribution. The largest pores had a diameter of about 800 μm and typically 99.8% of the total number of pores had a diameter smaller than 100 μm.