At 4 weeks after tooth extraction, the socket is filled with woven bone. Osteoclasts are present on the outer surfaces at the margin of the buccal and lingual walls, signaling resorption of cortical plates. The resorption of the bundle bone is almost complete. Osteoclasts also line the trabeculae of woven bone present in the central and lateral aspects of the socket, contributing to the remodeling of newly formed woven bone into a more mature type of trabecular bone.