Illustrations of fibrovascular ingrowth into porous implants. Implant sections
are stained with haematoxylin and basic fuchsin. A: Bacterial colonization
(arrows) of the surface crust; bacteria were not identified in the pores of the
implant (Nano implant, 6 weeks, SD rat, magnification 200x). B: Small vessels
(arrows) in fibrous tissue inside implant pores (Large implant, 4 weeks, CD rat,
magnification 200x). C: The innermost pores of the device show diffuse
fibrovascular ingrowth without significant inflammation (Nano implant, 6 weeks,
SD rat, magnification 200x). D: Poor tissue ingrowth (*) into pores of the
implant adjacent to a focus of granulomatous inflammation (dashed lines) (Small
implant, 6 weeks, SD rat, magnification 40x). E: Mononuclear infiltrates (*)
extending into the pores of the periphery of the implant (Nano implant, 6 weeks,
SD rat, magnification 200×).