Fig. 8From: In vitro immunological and biological evaluations of the angiogenic potential of platelet-rich fibrin preparations: a standardized comparison with PRP preparationsHistological examination of the effects of clotted PPP, clotted PRP, and PRF membrane preparations on the thickness and the structure of the CAM. Representative photomicrographs of Masson’s trichrome staining (n = 5). Cell nuclei and collagen are stained red and blue, respectively. Asterisks represent the regions for evaluation of cell density and collagen deposition. The controls included no plasma-derived supplementsBack to article page