title: Push-out bond strength of different translucent fiber posts cemented with self-adhesive resin cement.
abstract: OBJECTIVE
  Evaluate the bond strength of different translucent fiber posts in the cervical, middle, and apical root thirds cemented with self-adhesive resin cement.
  
  
  METHODS
  Sixty single-rooted teeth were randomly divided into five groups according to the fiber post used: Reforpost (opaque [control]), exacto, white post, radix, and Macro-Lock Illusion X-RO. The roots were subjected to chemomechanical preparation and cemented with self-adhesive resin cement. The teeth were sectioned into slices of the different root thirds and tested for bond strength (push-out). Two-way analysis of variance and Bonferroni test were used to verify statistical differences between groups (P< 0.05).
  
  
  RESULTS
  No significant difference between the root thirds was detected (P> 0.05). However, the performance of the posts demonstrated a significant difference (P< 0.05). RDX had a lower performance in the apical third (P< 0.05). The other fiber posts had the same performance irrespective of the root third evaluated. The predominant failure pattern was adhesive between resin cement and root dentin.
  
  
  CONCLUSIONS
  In general, the different translucent fiber posts showed the same performance. Yet, translucent fiber posts did not show superior bond strength compared with the opaque fiber post in any of the root thirds evaluated.
authors.affiliation: Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, PR, Brazil.
authors.forename: João Fernando
authors.initials: JF
authors.lastname: Bazzo
authors.affiliation: Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, PR, Brazil.
authors.forename: Maria Beatriz Bergonse Pereira
authors.initials: MB
authors.lastname: Pedriali
authors.affiliation: Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, PR, Brazil.
authors.forename: Ricardo Danil
authors.initials: RD
authors.lastname: Guiraldo
authors.affiliation: Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, PR, Brazil.
authors.forename: Sandrine Bittencourt
authors.initials: SB
authors.lastname: Berger
authors.affiliation: Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, PR, Brazil.
authors.forename: Sandra Kiss
authors.initials: SK
authors.lastname: Moura
authors.affiliation: Department of Restorative Dentistry, School of Dentistry, Meridional Faculty (IMED), Passo Fundo, RS, Brazil.
authors.forename: Rodrigo Varella
authors.initials: RV
authors.lastname: de de Carvalho
keywords: Dentin; luting agents; posttechniques; resin cements