Figure 3From: Bioabsorbable osteofixation for orthognathic surgery SEM image showing that a macrophage is attached the surface of u-HA/PLLA nano-composite plate, which explanted 7Â months after operation (A). (B) A defect on the surface of the bioabsorbable plate by macrophage indicates that a process of biodegradation is in progress.Back to article page