Effect of three endodontic sealers on the bond strength of prefabricated fiber posts luted with three resin cements

• Published in: The Journal of prosthetic dentistry 2012-05, Vol.107 (5), p.322-326
• Main Authors: Aleisa, Khalil, BDS, MSc, Alghabban, Rawda, BDS, Alwazzan, Khalid, BDS, MSc, Morgano, Steven M., DMD
• Format: Article
• Language: English
• Subjects: Analysis of Variance; Bismuth; Composite Resins; Dental Bonding; Dental Stress Analysis; Dentistry; Epoxy Resins; Humans; Post and Core Technique; Resin Cements; Root Canal Filling Materials; Silver; Statistics, Nonparametric; Titanium; Zinc Oxide-Eugenol Cement
• ISSN: 0022-3913; 1097-6841
• DOI: 10.1016/S0022-3913(12)60084-5

Statement of problem There is limited information in the literature regarding the effect of eugenol-based sealers on the bond strength of resin-bonded endodontic posts. Purpose The purpose of this study was to evaluate the effect of 1 resin-based and 2 different eugenol-based endodontic sealers on the bond strength of prefabricated fiber posts luted with 3 different resin cements. Material and methods One hundred thirty-five prefabricated fiber posts were luted into extracted single-rooted teeth with 1 of 3 composite resin cements (Rely X Unicem, Paracore, and Variolink II). Specimens were divided into 3 groups with 45 teeth each. The first 2 groups were obturated with gutta percha and 1 of 2 eugenol-based endodontic sealers (Endofil, Tubli-Seal). The third group was obturated with a resin-based root canal sealer (AH26). The forces required for dislodgment of posts from their prepared post spaces were recorded by using a universal testing machine. Data were collected and a 2-way ANOVA was applied to the mean retentive strengths of various combinations of sealer and cement. A Tukey multiple comparison test was performed to determine which groups were significantly different (α=.05). Results Endofil and Tubli-Seal (eugenol-based sealers) groups had significantly lower bond strengths for the posts than the AH26 group ( P