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Table 4 Information about total number of implants placed, number of implants placed below perforated membranes, number of implants placed below non-perforated membranes and their survival rates (%), and mean follow-up period of each study

From: Management of Schneiderian membrane perforations during maxillary sinus floor augmentation with lateral approach in relation to subsequent implant survival rates: a systematic review and meta-analysis

Author/year Implants (number) Implants inserted under perforated membranes (number) Implants inserted under intact membranes (number) Implant survival rate in perforated membranes Implant survival rate in intact membranes Mean follow-up (months)
Park et al. [4] 122 44 78 100% 100% Perforation group: 11.52 (±6.6)
Control group: 10.38 (6.73)
Beck-Broichsitter et al. [47] 175 92 89 98.9% 100% Perforation group: 31 (±24)
Control group: 20 (±18)
Ferreira et al. [16] 1588 523 1065 97.1% 97.7% Perforation group: 24
Control group: 24
Öncü E et al. [19] 35 15 20 100% 100% Perforation group: 6-12
Control group: 6-12
Froum et al. [48] 80 35 45 100% 95.5% Perforation group:6-32
Control group: 6-32
Oh E et al. [49] 438 134 304 97.01% 99% 6-32
Hernández-Alfaro et al. [50] 1166 272 894 90.81% 100% 12
Total 3604 1115 2495 97.68% 98.88%