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VOLUME 16 , ISSUE 2 ( February, 2015 ) > List of Articles

RESEARCH ARTICLE

The Effect of Self-adhesive and Self-etching Resin Cements on the Bond Strength of Nonmetallic Posts in Different Root Thirds

Mateus Rodrigues Tonetto, Rudys Rodolfo de Jesus Tavarez, Omar El-Mowafy, Matheus Coelho Bandeca, Thiago Soares Porto, Monica Barros da Silva, Fernanda Silva de Assis, Sizenando de Toledo Porto Neto

Citation Information : Tonetto MR, de Jesus Tavarez RR, El-Mowafy O, Bandeca MC, Porto TS, da Silva MB, de Assis FS, de Toledo Porto Neto S. The Effect of Self-adhesive and Self-etching Resin Cements on the Bond Strength of Nonmetallic Posts in Different Root Thirds. J Contemp Dent Pract 2015; 16 (2):147-153.

DOI: 10.5005/jp-journals-10024-1652

Published Online: 01-07-2015

Copyright Statement:  Copyright © 2015; The Author(s).


Abstract

Purpose

The purpose of this study was to evaluate the effect of self-adhesive and self-etching resin cements on the bond strength of nonmetallic posts in different root regions.

Materials and methods

Sixty single-rooted human teeth were decoronated, endodontically treated, post-space prepared, and divided into six groups. Glass-fiber (GF) posts (Exacto, Angelus) and fiber-reinforced composite (FRC) posts (EverStick, StickTeck) were cemented with self-adhesive resin cement (Breeze) (SA) (Pentral Clinical) and self-etching resin cement (Panavia-F) (SE) (Kuraray). Six 1-mm-thick rods were obtained from the cervical (C), middle (M), and apical (A) regions of the roots. The specimens were then subjected to microtensile testing in a special machine (BISCO; Schaumburg, IL, USA) at a crosshead speed of 0.5 mm/min. Microtensile bond strength data were analyzed with two-way ANOVA and Tukey's tests.

Results

Means (and SD) of the MPa were: GF/SA/C: 14.32 (2.84), GF/SA/M: 10.69 (2.72), GF/SA/A: 6.77 (2.17), GF/SE/C: 11.56 (4.13), GF/SE/M: 6.49 (2.54), GF/SE/A: 3.60 (1.29), FRC/SA/C: 16.89 (2.66), FRC/SA/M: 13.18 (2.19), FRC/SA/A: 8.45 (1.77), FRC/SE/C: 13.69 (3.26), FRC/SE/M: 9.58 (2.23), FRC/SE/A: 5.62 (2.12). The difference among the regions was statistically significant for all groups (p < 0.05). The selfadhesive resin cement showed better results than the selfetching resin cement when compared to each post (p < 0.05). No statistically significant differences in bond strengths of the resin cements when comparable to each post (p > 0.05).

Conclusion

The bond strength values were significantly affected by the resin cement and the highest values were found for self-adhesive resin cement.

How to cite this article

da Silva MB, de Jesus Tavarez RR, de Assis FS, Tonetto MR, Porto TS, Bhandi SH, El-Mowafy O, de Toledo Porto Neto S, Bandeca MC. The Effect of Self-adhesive and Self-etching Resin Cements on the Bond Strength of Nonmetallic Posts in Different Root Thirds. J Contemp Dent Pract 2015;16(2):147-153.

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