title: Maxillary sinus floor elevation with simultaneous implant placement without grafting materials: a systematic review and meta-analysis.
abstract: The present study aimed to conduct a systematic review and meta-analysis on the effectiveness of maxillary sinus floor elevation and immediate implant installation without the use of grafting material. An electronic search without date or language restriction ​​was performed in PubMed/MEDLINE, Cochrane Central Register of Controlled Trials, Web of Science, Embase, and the grey literature, to May 2016. Eligibility criteria encompassed prospective and retrospective cohort studies, controlled clinical trials, and randomized clinical trials. The search and selection process yielded 18 studies, published between 2005 and 2016. A meta-analysis was conducted only for experimental studies comparing sinus floor elevation with and without grafting material; results were expressed as the standardized mean difference (SMD) or risk ratio (RR) with the 95% confidence interval (CI). An average gain in bone height of 4.7mm over an average 39.4 month period was observed in the sinus elevated without grafting material. Regarding implants, there was a cumulative average survival rate of 97%. On meta-analysis, bone gain (P=0.98) and implant survival (P=0.13) did not differ significantly between sinuses lifted with or without grafting material, with a SMD of 0.01 (95% CI -0.42 to 0.44) and with a RR of 0.55 (95% CI 0.26 to 1.19), respectively.
authors.affiliation: Department of Periodontology, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil. Electronic address: vittoriomf@terra.com.br.
authors.forename: V
authors.initials: V
authors.lastname: Moraschini
authors.affiliation: Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil.
authors.forename: M G
authors.initials: MG
authors.lastname: Uzeda
authors.affiliation: Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil.
authors.forename: S C
authors.initials: SC
authors.lastname: Sartoretto
authors.affiliation: Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil.
authors.forename: M D
authors.initials: MD
authors.lastname: Calasans-Maia
mesh_terms: D015921:Dental Implants; D019232:Dental Restoration Failure; D006801:Humans; D057893:Immediate Dental Implant Loading / Q000379:methods*; D059546:Sinus Floor Augmentation / Q000379:methods*
chemical_list: D015921:Dental Implants
keywords: bone regeneration; dental implant; sinus floor elevation; sinus lift