Influence of Relining Post on the Bond Strength of Resin Cements.

Abstract

This study evaluated the influence of relining fiber posts on the bond strength (BS) of resin cements in the root canal. Forty bovine teeth were divided in four groups (n = 10): G1 (ARC)-fiber post cemented with resin cement RelyX ARC; G2 (ARC+Z350)-relined fiber post cemented with RelyX ARC; G3 (U200)-fiber post cemented with self-adhesive cement RelyX U200; G4 (U200+Z350)-relined fiber post cemented with RelyX U200. The roots were sectioned in six 1.2-mm slices and the push-out test was performed. Data were analyzed by three-way analysis of variance (ANOVA), and Tukey's test (a = 0.05). For the conventional resin cement, there was no significant difference between groups G1-ARC (15.5 ± 3.8) and G2-ARC+Z350 (16.1 ± 4.5). For the self-adhesive cement, the results revealed higher BS values for relined posts G4-U200 + Z350 (19.9 ± 7.9) as compared to non-relined posts G3-U200 (14.4 ± 4.5). For both cements, in groups of relined posts, the apical and the cervical thirds presented similar BS. Relining enhances the performance of the self-adhesive resin cement, and the interaction between relining and root third influences the BS to the conventional resin cement.

• Authors: Daniele Meira Conde, Vandilson Pinheiro Rodrigues, Soraia de Fátima Carvalho Souza, José Roberto Oliveira Bauer, Fausto da Silva Bramante, Suellen Nogueira Linares Lima, Etevaldo Matos Maia Filho, Matheus Coelho Bandeca, Adriano Augusto Melo de Mendonça, Darlon Martins Lima
• Journal: The journal of contemporary dental practice (J Contemp Dent Pract) Vol. 16 Issue 7 Pg. 559-64 (07 01 2015) ISSN: 1526-3711 [Electronic] India
• PMID: 26329411 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Composite Resins
• Dental Materials
• Polymethacrylic Acids
• RelyX ARC
• RelyX U200
• Resin Cements
• Scotchbond Multi-Purpose
• fiberglass
• filtek Z350
• Polyethylene Glycols
• Bisphenol A-Glycidyl Methacrylate

Topics

• Animals
• Bisphenol A-Glycidyl Methacrylate (chemistry)
• Cattle
• Cementation (methods)
• Composite Resins (chemistry)
• Dental Bonding
• Dental Materials (chemistry)
• Dental Pulp Cavity (ultrastructure)
• Dentin (ultrastructure)
• Glass (chemistry)
• Polyethylene Glycols (chemistry)
• Polymethacrylic Acids (chemistry)
• Post and Core Technique (instrumentation)
• Random Allocation
• Resin Cements (chemistry)
• Root Canal Preparation (methods)
• Stress, Mechanical
• Surface Properties