Representative images of histological sections stained with Goldner’s Trichrome. The histological sections depict: (a) empty defect or defects treated with (b) PCL scaffold; (d) HT-CPL scaffold; (f) BMSCs on HT-PCL scaffolds; and (h) DPSCs on HT-PCL scaffolds. Superimposed magnifications of the transition area between defect and existing bone are presented for each of the scaffold-containing groups. The magnifications are: (c) PCL scaffold; (e) HT-CPL scaffold; (g) BMSCs on HT-PCL scaffolds, and (i) DPSCs on HT-PCL scaffolds. Translucent areas within the defects treated with a PCL scaffold represent areas where PCL was present prior to embedding. Scale bars are presented at each image.