Implants in the Posterior Maxilla: Open Sinus Lift Versus Conventional Implant Placement. A Systematic Review

The International Journal of Oral & Maxillofacial Implants
Javier Romero-Millán JDavid Peñarrocha-Oltra

Abstract

To compare implant survival, marginal bone loss, peri-implant clinical parameters, and complications in dental implants placed in the posterior maxilla in native bone or after grafting using the open sinus lift technique. A search was made of two electronic databases (MEDLINE via PubMed and the Cochrane Oral Health Group Trials Register [CENTRAL]), complemented by a manual search. The study included randomized clinical trials, non-randomized clinical trials, and observational studies such as cohort studies and case-control studies conducted on a prospective or retrospective basis and comparing the placement of standard length implants (≥ 10 mm) in native bone or after grafting using the sinus lift procedure. Risk of bias was evaluated with the Cochrane risk of bias assessment tool and the methodological index for non-randomized studies (MINORS). The search yielded 90 studies, of which 23 were included. Two studies were evaluated with the Cochrane risk of bias assessment tool, with neither being identified as presenting low risk of bias. Twenty-one studies were evaluated by the MINORS, yielding a mean score of 15.66 points out of 24. The implant survival rate in the control group was 90% to 100% versus 75.3% to 100% in the test ...Continue Reading

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