title: Fixed Rehabilitation of Edentulous Mandibles Using 2 to 4 Implants: A Systematic Review.
abstract: OBJECTIVE
  This systematic review evaluated survival rates, marginal bone loss (MBL), and complications of using 2 to 4 implants to support full-arch fixed prostheses in the mandible.
  
  
  METHODS
  An electronic search was performed in PubMed, Web of Science, and the Cochrane Central Register of Controlled Trials to identify relevant articles published until March 2015. Articles were critically reviewed to determine the level of quality.
  
  
  RESULTS
  The initial search resulted in 910 articles from PubMed/MEDLINE, 162 titles from the Cochrane Central Register of Controlled Trials, and 363 from the Web of Science. After an initial assessment and careful reading, 19 studies published between 1999 and 2014 were included in this review.
  
  
  CONCLUSIONS
  The results of this review suggest that full-arch fixed dental prosthesis in mandible supported by 2 to 4 implants exhibited a low rate of failures for implants and prostheses, a low rate of MBL, and a low rate of biomechanical and biological complications.
authors.affiliation: *Assistant Professor, Department of Periodontology, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil. †Assistant Professor, Department of Implant Dentistry, São Leopoldo Mandic Dental College, Rio de Janeiro, Brazil. ‡Graduate Student, Department of Periodontology, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil. §Assistant Professor, Department of Periodontology, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil. ¶Chair Professor, Department of Periodontology, School of Dentistry, Fluminense Federal University, Rio de Janeiro, Brazil.
authors.forename: Vittorio
authors.initials: V
authors.lastname: Moraschini
authors.forename: Glauco
authors.initials: G
authors.lastname: Velloso
authors.forename: Diogo
authors.initials: D
authors.lastname: Luz
authors.forename: Daniele M
authors.initials: DM
authors.lastname: Cavalcante
authors.forename: Eliane Dos Santos Porto
authors.initials: Edos S
authors.lastname: Barboza
mesh_terms: D003758:Dental Implantation, Endosseous / Q000379:methods; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported / Q000379:methods; D006801:Humans; D007575:Jaw, Edentulous / Q000534:rehabilitation / Q000601:surgery*
chemical_list: D015921:Dental Implants