Table 1.

Immunopositive cells that expressed PCNA, BMP-2, and FGF-2

Expression	Relative ranking
	Based on total number of cells	Based on proportion
PCNA	Fibroblasts > bone-lining cells > endothelial cells	Fibroblasts = bone-lining cells > endothelial cells
BMP-2	Fibroblasts > bone-lining cells > endothelial cells	Bone-lining cells > fibroblasts > endothelial cells
FGF-2	Fibroblasts > bone-lining cells > endothelial cells	Fibroblasts = bone-lining cells > endothelial cells

Immunopositive cells in proximity to bone were assessed as bone-lining, fibroblastic, or endothelial cells that were part of blood vessels.