The Effect of Self-adhesive and Self-etching Resin Cements on the Bond Strength of Nonmetallic Posts in Different Root Thirds
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Data
2015-02-01
Autores
da Silva, Monica B.arros
Tavarez, Rudys R.odolfo de Jesus
de Assis, Fernanda S.ilva
Tonetto, Mateus R.odrigues
Neto, Thiago P.orto
Bhandi, Shilpa H.
El-Mowafy, Omar
Porto Neto, Sizenando de Toledo
Bandeca, Matheus C.oelho
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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 self-adhesive resin cement showed better results than the self-etching 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.
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Bandeca MC. The Effect of Self-adhesive and Self-etching Resin Cements on the Bond Strength of Non-metallic Posts in Different Root Thirds. J Contemp Dent Pract 2015;16(2):147-153. Source of support: Nil Conflict of interest: None., Bhandi SH, Bond strength. How to cite this article: da Silva MB, de Assis FS, de Jesus Tavarez RR, de Toledo Porto Neto S, El-Mowafy O, Neto TP, Post, Resin cement, Tonetto MR
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The journal of contemporary dental practice, v. 16, n. 2, p. 147-153, 2015.