1Department of Conservative, College of Dentistry, University of Baghdad, Iraq
Online published on 23 December, 2019.
Grape seed extract is rich of Proanthocyanidin as a collagen crosslink which enhances the mechanical properties of dentin. This in vitro study aimed to evaluate the influence of Proanthocyanidin on push-out bond strength of prefabricated fiber post cemented with self-adhesive resin cement in different root canal areas. Method: twenty-four roots were instrumented with hand universal ProTaper System and randomly divided into three groups (n=8), according to final irrigant protocol: group1: distilled water, group 2: 5.25% NaOCl/17% EDTA, group 3: 7% PA. Samples then obturated and coronal 8mm of the obturating materials were removed and space re-rinsed with the proposed irrigating protocol respective to the groups. Fiber posts were luted using self-adhesive resin cement. Two slices from coronal and middle thirds were prepared from each root (2 mm thickness). Push-out test was performed in a universal testing machine. Bond strength data were expressed in megapascal and analyzed by one-way ANOVA and LSD test. Results revealed that, coronally, group 3 showed significantly higher BS. In the middle levels, group 3 showed significantly higher BS than group 1, while no significantly different with group 2. Conclusions: Irrigation with 7% PA showed increased BS of fiber post to root dentin.
Proanthocyanidin, Push-out, fiber post, self-adhesive cement
