Caroliene Meijndert

31 Single implants in the aesthetic region preceded by local ridge augmentation Table 5. Mucosa level change. Mean change ± standard deviation (in mm) of marginal gingiva level (MGL) between T 1, T 12 and T 120 of treatment group Chin bone, Chin bone + Bio-Gide® and Bio-Oss® + Bio-Gide® . Chin bone (gr1) Chin bone + Bio- Gide® (gr2) Bio-Oss® + Bio- Gide® (gr3) Significance level between groups* Total of the groups T 1 -T 12 n=31 n=31 n=29 n=91 MGL mesial of implant 0.22 ± 0.45 0.19 ± 0.43 0.30 ± 0.51 p overall  = 0.68 0.24 ± 0.46 MGL buccal of implant -0.02 ± 0.32 -0.06 ± 0.39 -0.12 ± 0.52 p overall  = 0.65 -0.06 ± 0.42 MGL distal of implant 0.27 ± 0.76 0.17 ± 0.48 0.32 ± 0.72 p overall  = 0.66 0.25 ± 0.66 T 1 -T 120 n=26 n=18 n=17 n=61 MGL mesial of implant 0.56 ± 0.84 0.27 ± 1.10 0.82 ± 0.60 p overall  = 0.17 0.53 ± 0.89 MGL buccal of implant -0.10 ± 0.68 -0.46 ± 1.00 -0.47 ± 0.79 p overall  = 0.24 -0.31 ± 0.32 MGL distal of implant 0.45 ± 1.03 0.19 ± 1.13 0.79 ± 0.67 p overall  = 0.18 0.46 ± 0.99 T 12 -T 120 n=26 n=18 n=17 n=61 MGL mesial of implant 0.28 ± 0.82 0.11 ± 1.09 0.51 ± 0.76 p overall  = 0.40 0.29 ± 0.90 MGL buccal of implant -0.08 ± 0.61 -0.50 ± 0.89 -0.41 ± 0.85 p overall  = 0.16 -0.30 ± 0.78 MGL distal of implant 0.27 ± 0.90 -0.02 ± 0.93 0.53 ± 0.80 p overall  = 0.17 0.25 ± 0.90 * Overall significance level between groups was calculated using the One-way ANOVA. When a p-value ˂ 0.05 was found, the independent t- test related an observed significant difference to a specific group. 2