Fig. 2From: Influence of implant protrusion length on non-grafting osteotome sinus floor elevation with simultaneous implant: a 3- to 9-year retrospective study(a) Patient-based and (b) implant-based Kaplan-Meier curve indicating favorable cumulative survival rates for non-grafting OSFE. (c) Kaplan-Meier analysis of implants with different IPL groups at the baseline. High implant survival rates were shown and no significant difference was found between the three IPL groups (P=0.373)Back to article page