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ORIGINAL RESEARCH ARTICLE
Year : 2016  |  Volume : 19  |  Issue : 6  |  Page : 583-586

Push-out bond strength of different translucent fiber posts cemented with self-adhesive resin cement


1 Department of Restorative Dentistry, School of Dentistry, University of North Parana (UNOPAR), Londrina, PR, Brazil
2 Department of Restorative Dentistry, School of Dentistry, Meridional Faculty (IMED), Passo Fundo, RS, Brazil

Correspondence Address:
Rodrigo Varella de Carvalho
Department of Restorative Dentistry, School of Dentistry, Meridional Faculty (IMED), Rua Senador Pinheiro, 304, Passo Fundo, RS 99070-220, Brazil
Brazil
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.194036

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Purpose: Evaluate the bond strength of different translucent fiber posts in the cervical, middle, and apical root thirds cemented with self-adhesive resin cement. Materials and 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. Conclusion: 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.


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