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Histomorphometric analysis of the (a) bone formation and (b) remnant silk gel were also calculated for four groups at 4 and 12 weeks post-operation (* indicates significant differences, p < 0.05). The quantitative variables from Micro-CT scans of (c) Bone mineral density (BMD), (d) the ratio of bone volume to total volume (BV/TV), (e) trabecular thickness (Tb.Th) and (f) trabecular number (Tb.N) were calculated to assess the quality of newly formed bone in the different groups.
