Fig. 4From: The efficacy of rhBMP-2 loaded hydrogel composite on bone formation around dental implants in mandible bone defects of minipigsHistological finding. The implant osseointegration in the rhBMP-2 group was the best. Compared to the implant group, the osseointegration of the implant in the hydrogel group was the worst. The green arrows indicate new formed bone around the implant. Hematoxylin and eosin stain(× 40). Scale bar = 1 mm. I: implant; NB: new bone. a The implant group; b The hydrogel group; c The rhBMP-2 groupBack to article page