Fig. 3

Mucosal recession (REC) at baseline, 6 months and 12 months of treatment with choline-stabilized orthosilicic acid (CS-OSA) compared to placebo. Data is presented as mean with 95% confidence interval (CI). The insert box shows the difference in difference (DID) between baseline and 6 months (T0-T6), baseline and 12 months (T0-T12) and 6 months and 12 months (T6-T12) of treatment with placebo and CS-OSA. *p < 0.05 vs baseline (within placebo); ^#p < 0.05 vs placebo. n = the amount of implant sites