Fig. 2

Inflammatory infiltrate in peri-implant tissues was examined using H&E staining. A Images of tissues surrounding implants in different groups of mice. B Numbers of infiltrated inflammatory cells in peri-implant tissues were analyzed (mean ± SD, n = 3, *p < 0.05, **p < 0.01; ns, no significance; I, implant space; B, bone; G, gingiva. Scale bars, 50 μm)