Fig. 1From: Rapid bone regeneration by Escherichia coli-derived recombinant human bone morphogenetic protein-2 loaded on a hydroxyapatite carrier in the rabbit calvarial defect modelTwo circular intraosseous defects of 8 mm diameter were made in each rabbit calvarium. The experimental graft materials (a, ErhBMP-2/HAP; b, HAP only) were grafted into one defect, and the other defect was left untreated as a controlBack to article page