title: Implant and prosthodontic survival rates with implant fixed complete dental prostheses in the edentulous mandible after at least 5 years: a systematic review.
abstract: BACKGROUND
  The treatment of mandibular edentulism with implant fixed complete dental prostheses (IFCDPs) is a routinely used treatment option.
  
  
  OBJECTIVE
  The study aims to report the implant and prosthodontic survival rates associated with IFCDPs for the edentulous mandible after an observation period of a minimum 5 years.
  
  
  METHODS
  An electronic MEDLINE/PubMED search was conducted to identify randomized controlled clinical trials and prospective studies with IFCDPs for the edentulous mandible. Clinical studies with at least 5-year follow-up were selected. Pooled data were statistically analyzed and cumulative implant- and prosthesis survival rates were calculated by meta-analysis, regression, and chi-square statistics. Implant-related and prosthesis-related factors were identified and their impact on survival rates was assessed.
  
  
  RESULTS
  Seventeen prospective studies, including 501 patients and 2,827 implants, were selected for meta-analysis. The majority of the implants (88.5% of all placed implants) had been placed in the interforaminal area. Cumulative implant survival rates for rough surface ranged from 98.42% (95% confidence interval [CI]: 97.98-98.86) (5 years) to 96.86% (95% CI: 96.00-97.73) (10 years); smooth surface implant survival rates ranged from 98.93% (95% CI: 98.38-99.49) (5 years) to 97.88% (95% CI: 96.78-98.98) (10 years). The prosthodontic survival rates for 1-piece IFCDPs ranged from 98.61% (95% CI: 97.80-99.43) (5 years) to 97.25% (95% CI: 95.66-98.86) (10 years).
  
  
  CONCLUSIONS
  Treatment with mandibular IFCDPs yields high implant and prosthodontic survival rates (more than 96% after 10 years). Rough surface implants exhibited cumulative survival rates similar to the smooth surface ones (p > .05) in the edentulous mandible. The number of supporting implants and the antero-posterior implant distribution had no influence (p > .05) on the implant survival rate. The prosthetic design and veneering material, the retention type, and the loading protocol (delayed, early, and immediate) had no influence (p > .05) on the prosthodontic survival rates.
authors: Department of Prosthodontics, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece; Department of Restorative Dentistry & Biomaterials Sciences, Harvard School of Dental Medicine, Boston, MA, USA.
authors: Panos
authors: P
authors: Papaspyridakos
authors: Muizzaddin
authors: M
authors: Mokti
authors: Chun-Jung
authors: CJ
authors: Chen
authors: Goran I
authors: GI
authors: Benic
authors: German O
authors: GO
authors: Gallucci
authors: Vasilios
authors: V
authors: Chronopoulos
mesh_terms: D003758:Dental Implantation, Endosseous / Q000379:methods; D015921:Dental Implants; D006801:Humans; D009066:Mouth, Edentulous / Q000601:surgery*; D011475:Prosthesis Failure; D011476:Prosthodontics
chemical_list: D015921:Dental Implants
keywords: dental implants; edentulous mandible; evidence-based dentistry; fixed complete prosthesis; full arch; implant survival rates