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Scanning electron microscopy (SEM) images of the Si3N4 implants. (A) The bone bridge was formed extending to the implant surface for implant installed into the distal position of the rabbit’s tibia. CO = Compacta. (B) The bone bridge was not formed for the implant installed into the proximal position of the rabbit’s tibia. CO = Compacta. The image is reprinted with the permission from ref. [68]. Copyright 2007 Elsevier Publishing Group.
