Figure 4

Immunolabeling for VEGF and OCN in peri-implant tissue. (a) and (f) Graphs showing the immunolabeling density for VEGF (a) and OCN (f). (b–e) and (g–j) Photomicrographs showing the immunolabeling pattern for VEGF (b–e) and OCN (g–j) in the peri-implant tissue in groups VEH ((b) and (g)), VEH-EPI (c and h), ZOL ((d) and (i)) and ZOL-EPI ((e) and (j)). Statistical test: Variance Analysis (ANOVA) followed by Tukey post-test. Symbols: †statistically significant difference in relation to the VEH group; ‡statistically significant difference in relation to the VEH-EPI group; ¶statistically significant difference in relation to the ZOL group. Original magnification: 1000x. Scale bars: 25 μm.