Figures 5–8. Figure 5. A few bone trabeculae present around implant. No osteoblasts were observed (acid fuchsin and toluidine blue, original magnification ×12). Figure 6. Higher magnification of the coronal portion of the bone-implant interface. A single bone trabecula in direct contact with the implant surface (acid fuchsin and toluidine blue, original magnification ×100). Figure 7. Mature bone with many haversian canals was present around the implant. The central core of each osteon was a canal containing nerves and blood vessels (acid fuchsin and toluidine blue, original magnification ×12). Figure 8. Lamellar and woven bone were observed in direct contact with the implant surface. No gaps or connective tissue were present at the bone-implant interface. The preexisting bone quality was type D4. No apical epithelial migration was found. No inflammatory infiltrate was present around the implant (acid fuchsin and toluidine blue, original magnification ×100)