Fig. 5A–D.

Representative histologic sections of the (A) saline, (B) low-dose, (C) middle-dose, and (D) high-dose treatment groups are shown. The sections are from four implants inserted in the same animal. Enhanced photomicrographs of the histologic sections are shown on the right. Increased amounts of bone are seen around the implants from the low- and middle-dose treatment groups. The allograft chips are not surrounded by any new bone in the high-dose treatment group. A = new bone; B = allograft, C = implant. Bar = 1 mm (Stain, basic fuchsin and light green; magnification, objective ×1.25, ocular ×10 (left), objective ×10, ocular ×10 (right).