The Effect of Self-adhesive and Self-etching Resin Cements on the Bond Strength of Nonmetallic Posts in Different Root Thirds
| Autor: | Thiago P.orto Neto, Omar El-Mowafy, Sizenando de Toledo Porto Neto, Fernanda Silva de Assis, Matheus Coelho Bandeca, Monica Barros da Silva, Shilpa Bhandi, Mateus Rodrigues Tonetto, Rudys Rodolfo De Jesus Tavarez |
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| Rok vydání: | 2015 |
| Předmět: |
Dental Stress Analysis
Materials science Surface Properties Composite number Dentistry Composite Resins Tooth Cervix Crosshead Dental Materials Random Allocation Tooth Apex Tensile Strength Materials Testing Humans Composite material General Dentistry Cementation Resin cement Tooth Nonvital business.industry Bond strength Dental Bonding Resin Cements Self etch Self adhesive Microscopy Electron Scanning Glass Stress Mechanical Dental Pulp Cavity business Root Canal Preparation Post and Core Technique |
| Zdroj: | The journal of contemporary dental practice. 16(2) |
| ISSN: | 1526-3711 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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