OBJECTIVES: @entity273 ( @entity274 ) surface treatment of fiber posts has been reported to increase bond strength of fiber posts to resin cements. However, residual @entity26 radicals might jeopardize the bonding procedure. This study examined the effect of three antioxidant agents on the bond strength of fiber posts to conventional and self-adhesive resin cements. MATERIALS AND METHODS: Post spaces were prepared in forty @entity1 maxillary second premolars. Posts were divided into five groups of 8 each: G1 (control), no pre-treatment; G2, 10% @entity274 pre-treatment; G3, G4 and G5. After @entity274 application, @entity35085 (HES), @entity620 (SA) or @entity10419 (RA) was applied on each group respectively. In each group four posts were cemented with Duo-Link conventional resin cement and the others with self-adhesive BisCem cement. Push-out test was performed and data were analyzed using 2-way ANOVA and tukey's post-hoc test (a = 0.05). RESULTS: There was a statistically significant interaction between the cement type and post surface treatment on push-out bond strength of fiber posts (p < 0.001, F = 16). Also it was shown that different posts' surface treatments significantly affect the push-out bond strength of fiber posts (p = 0.001). @entity274 treated posts (G2) and control posts (G1) cemented with Duo-link showed the highest (15.96    5.07MPa) and lowest bond strengths (6.79    3.94) respectively. CONCLUSIONS: It was concluded that @entity274 surface treatment might enhance the bond strength of fiber posts cemented with conventional resin cements. The effect of antioxidants as post's surface treatment agents depends on the characteristics of resin cements used for bonding procedure.

Effect of antioxidants on push-out bond strength of XXXX treated glass fiber posts bonded with two types of resin cement.

@entity1 :: ('9606', 'Species') :: ['human'] @entity274 :: ('CHEBI:16240', 'Chemical') :: ['H2O2'] @entity620 :: ('MESH:D001205', 'Chemical') :: ['Sodium Ascorbate'] @entity10419 :: ('MESH:C041376', 'Chemical') :: ['Rosmarinic acid'] @entity26 :: ('MESH:D010100', 'Chemical') :: ['oxygen'] @entity273 :: ('MESH:D006861', 'Chemical') :: ['Hydrogen peroxide'] @entity35085 :: ('MESH:D006569', 'Chemical') :: ['Hesperidin']
@entity273 :: (MESH:D006861,Chemical) :: ['hydrogen peroxide']
