title: [Fiber post versus metal screw post for repair of residual crowns and roots: a systematic review].
abstract: OBJECTIVE
  To evaluate the restorative effectiveness of fiber post versus metal screw post through systematical review.
  
  
  METHODS
  Randomized controlled trials (RCTs) data from the establishment of the database up to June 2013 were searched from MEDLINE (Ovid), PubMed, The Cochrane Library, Embase, Wanfang Data, VIP, CNKI and CBM using the designed strategy. After data extraction and quality review of the retrieved articles by two independent investigators, the softwares of RevMan 5.1.0 and GRAED profiler 3.2.2 were employed to process data analysis.
  
  
  RESULTS
  Ten RCTs were finally included, of which 1 was English literature and 9 were Chinese literatures. Meta analysis suggested that the survival rate of repair of adult and young permanent teeth was significantly higher using fiber post than metal screw post [RR=1.21,95%CI(1.13,1.30), P<0.01,RR=1.21,95%CI(1.10,1.34), P<0.01], and the results root fracture rate was significantly lower [RR=0.16,95%CI(0.05,0.48),P=0.001]. No significant difference was found in the rate of post-core fall off [RR=0.76,95%CI(0.33,1.73), P>0.05] and gingivitis [RR=0.71, 95%CI(0.27,1.88), P>0.05]. All outcomes were of low quality in the GRADE system.
  
  
  CONCLUSIONS
  Compared with metal screw post, the survival rate is significantly higher and the root fracture rate is significantly lower by using fiber post. However, the conclusion is limited by lack of relevant studies, small sample sizes, inadequate quality and diversified methodology. Further study is needed by employing more well-designed, large-sample and multi-center RCTs to verify the conclusion.
authors.affiliation: Department of Prosthodontics, Jinan Stomatological Hospital. Jinan 250001;China.E-mail:nancybaby-001@163.com.
authors.forename: Sheng-nan
authors.initials: SN
authors.lastname: Zhang
authors.forename: Qing
authors.initials: Q
authors.lastname: DU
authors.forename: Liang
authors.initials: L
authors.lastname: Han
authors.forename: Ping
authors.initials: P
authors.lastname: Liu
authors.forename: Ting
authors.initials: T
authors.lastname: Li
authors.forename: Li-li
authors.initials: LL
authors.lastname: Zhang
mesh_terms: D000328:Adult; D001863:Bone Screws; D003442:Crowns; D006801:Humans; D008670:Metals; D016032:Randomized Controlled Trials as Topic
chemical_list: D008670:Metals