Histologic evaluation for the 4 week specimen at the control side. (a) Healed bony socket at the control side after removal of titanium fixture (original magnification ×10). (b) The side wall of the bony socket where bone trabeculae extend from the coronal part of original socket wall toward the implant fixture space (original magnification ×40). (c) Larger magnification for the socket wall at the side with few bony spicules extending from socket wall toward the implant fixture space (original magnification ×100).