Statistical analysis primary objective
The main outcome is R/S device migration calculated by analyzing 3D reconstructions of the R/S device, acquired by CBCT scans at baseline and during follow-up. Migration will be reported in millimeters and angle degrees (continuous variables) between the intervention group and the control group at baseline and 3 and 12 months after implantation. Differences between the intervention and control group will be calculated using the unpaired 