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A systematic review and meta-analysis of the survival rate of implants placed in previously failed sites

Gomes, Giovane Hisse; Misawa, Mônica Yuri Orita; Fernandes, Carolina; Pannuti, Claudio Mendes; Saraiva, Luciana; Huynh-Ba, Guy; Villar, Cristina Cunha.
Braz. oral res. (Online) ; 32: e27, 2018. tab, graf
Artigo em Inglês | LILACS | ID: biblio-889498
Abstract The aim of this study was to conduct a systematic review and meta-analysis to assess the clinical outcomes of dental implants placed in previously early and late implant failed sites. An electronic literature search was conducted in several databases for articles published up to February 2018. Human clinical trials that received at least one implant in a previously failed site were included. Hence, the PICO question that was aimed to be addressed was Do patients undergoing implant replacement (second and third attempts) in previous failed sites have survival rates similar to implants placed at first attempts? A random effects model was used to calculate survival weighted means and corresponding 95% Confidence Intervals (CI) among studies. Eleven studies of low to moderate methodological quality were included in this review. Implants placed in sites with history of one and two implant failures had a weighted survival rate (SR) of 88.7% (95%CI 81.7-93.3) and 67.1% (95%CI 51.1-79.9), respectively. Implants placed in sites with a previous early failure revealed a weighted SR of 91.8% (95%CI 85.1-95.6). First implants presented higher SR than implants placed in sites with one or two previous implant failures. In contrast, implants placed in sites with one and two implant failures had similar SR. Within its limitations, this review suggests that replacement implants have moderate SR. Larger prospective studies with well-defined criteria for early and late implant failure are necessary to confirm and expand on these results.
Biblioteca responsável: BR1.1