Figure 5.

The number of MG63 cell nuclei stained with Hoechst dye on the SLA, SLA + 30 nm, SLA + 50 nm, and SLA + 80 nm surfaces at 30 minutes, 1 hour, and 2 hours (100×).

Notes: At each time interval adopted in this study, the adherent cell numbers on the three micro/nanotextured surfaces are dramatically larger than that on the SLA surface (P<0.05). The cell number on the surface of the SLA + 30 nm group is significantly higher than those on the other two groups (P<0.01). The surfaces of the SLA group have the lowest number of cells.

Abbreviation: SLA, sandblasting with large grit and acid etching.