A Retrospective Multicenter Clinical Study of Installed US II/SS II Implants after Maxillary Sinus Floor Elevation
This study evaluated 116 patients who received US II or SS II implants through maxillary sinus floor elevation procedures at 6 medical clinics. This survey was conducted with clinical and radiolographical examinations, in addition to questionnaires. Follow-up on these patients ranged from 21 months to 49 months (average 30.7 months). In these cases, the survival rate of US II implants was 99.2% (success rate 97.6%). For the SS II implant, the rate was 95.8%, with a success rate of 89.7%.