title: A systematic review of factors associated with the retention of glass fiber posts.
abstract: This study aimed to identify factors that can affect the retention of glass fiber posts to intra-radicular dentin based on in vitro studies that compared the bond strength (BS) of GFPs cemented with resin cements. Searches were carried out in PubMed and Scopus until December 2013. Bond strength values and variables as type of tooth, presence of endodontic treatment, pretreatment of the post, type of bonding agent (if present), type of cement and mode of cement application were extracted from the 34 included studies. A linear regression model was used to evaluate the influence of these parameters on BS. The presence of endodontic treatment decreased the BS values in 22.7% considering the pooled data (p = 0.013). For regular cement, cleaning the post increased BS when compared to silane application without cleaning (p = 0.032), considering cleaning as ethanol, air abrasion, or phosphoric acid application. Applying the cement around the post and into root canal decreased the resistance compared to only around the post (p = 0.02) or only into root canal (p = 0.041), on the other hand, no difference was found for self-adhesive resin cement for the same comparisons (p = 0.858 and p = 0.067). Endodontic treatment, method of cement application, and post pretreatment are factors that might significantly affect the retention of glass-fiber posts into root canals mainly when cemented with regular resin cement. Self-adhesive resin cements were found to be less technique-sensitive to luting procedures as compared with regular resin cements.
authors.affiliation: Universidade Federal de Pelotas, Pelotas, RS, Brazil.
authors.forename: Jovito Adiel
authors.initials: JA
authors.lastname: Skupien
authors.affiliation: Universidade Federal de Pelotas, Pelotas, RS, Brazil.
authors.forename: Rafael
authors.initials: R
authors.lastname: Sarkis-Onofre
authors.affiliation: Department of Restorative Dentistry, Dental School, Universidade Federal de Pelotas, Pelotas, RS, Brazil.
authors.forename: Maximiliano Sérgio
authors.initials: MS
authors.lastname: Cenci
authors.affiliation: Department of Restorative Dentistry, Dental School, Universidade Federal de Pelotas, Pelotas, RS, Brazil.
authors.forename: Rafael Ratto de
authors.initials: RR
authors.lastname: Moraes
authors.affiliation: Department of Prosthodontics, Dental School, Universidade Federal de Pelotas, Pelotas, RS, Brazil.
authors.forename: Tatiana
authors.initials: T
authors.lastname: Pereira-Cenci
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D002417:Cattle; D002484:Cementation / Q000379:methods*; D017268:Dental Prosthesis Retention / Q000379:methods*; D057133:Dentin Desensitizing Agents / Q000737:chemistry; D005898:Glass / Q000737:chemistry*; D006801:Humans; D011176:Post and Core Technique; D019279:Resin Cements / Q000737:chemistry*; D016896:Treatment Outcome
chemical_list: D057133:Dentin Desensitizing Agents; D019279:Resin Cements; C009753:fiberglass