A systematic review of the success of sinus floor elevation and survival of implants inserted in combination with sinus floor elevation

Pjetursson, Bjarni E; Tan, Wah Ching; Zwahlen, Marcel; Lang, Niklaus P (2008). A systematic review of the success of sinus floor elevation and survival of implants inserted in combination with sinus floor elevation. Journal of clinical periodontology, 35(8 Suppl), pp. 216-40. Frederiksberg (DK): Wiley 10.1111/j.1600-051X.2008.01272.x

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OBJECTIVES: The objectives of this systematic review were to assess the survival rate of grafts and implants placed with sinus floor elevation. MATERIAL AND METHODS: An electronic search was conducted to identify studies on sinus floor elevation, with a mean follow-up time of at least 1 year after functional loading. RESULTS: The search provided 839 titles. Full-text analysis was performed for 175 articles resulting in 48 studies that met the inclusion criteria, reporting on 12,020 implants. Meta-analysis indicated an estimated annual failure rate of 3.48% [95% confidence interval (CI): 2.48%-4.88%] translating into a 3-year implant survival of 90.1% (95% CI: 86.4%-92.8%). However, when failure rates was analyzed on the subject level, the estimated annual failure was 6.04% (95% CI: 3.87%-9.43%) translating into 16.6% (95% CI: 10.9%-24.6%) of the subjects experiencing implant loss over 3 years. CONCLUSION: The insertion of dental implants in combination with maxillary sinus floor elevation is a predictable treatment method showing high implant survival rates and low incidences of surgical complications. The best results (98.3% implant survival after 3 years) were obtained using rough surface implants with membrane coverage of the lateral window.

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