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Document Type |
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Article In Journal |
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Document Title |
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Shear Bond Strength and Micro-leakage of Two Self–etching and a total–etch adhesive systems to Enamel. Shear Bond Strength and Micro-leakage of Two Self–etching and a total–etch adhesive systems to Enamel. |
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Document Language |
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English |
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Abstract |
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The aim of this study was to compare two self–etching and a total–etch adhesive systems by assessing their shear bond strength to bovine enamel and the microleakage on class V composite restorations prepared on enamel of human mandibular molar teeth. Bovine & human teeth selected and allocated in three groups according to the type of adhesive system: Group 1: Scotchbond Multi–Purpose; Group 2: Clearfil Liner Bond 2V; Group 3: Etch & Prime 3.0. For the microleakage test, each group was composed of ten class V restorations on the buccal surface. Two examiners attributed scores ranging from 0 (without leakage) to 3 (maximum leakage) to determine silver nitrate penetration at enamel–composite interface. Microleakage data were analyzed statistically by Kruskal–Wallis and Mann–Whitney tests at 5% significance level. For the shear bond strength test, ten teeth of each group were included, had their buccal surfaces flattened in order to obtain a 3–mm–diameter area to which a resin cylinder was bonded. After one week, the specimens were tested in shear strength at a crosshead speed of 0.5 mm/min. Bond strength data were treated by ANOVA and LSD tests at 5% significance level. The debonded interfaces were examined under scanning electron microscopy. No leakage was observed along enamel margins. Means (± SD) in MPa were: 18.75 (±5.83), 22.17 (±4.95) and 14.93 (±6.7) for Groups 1, 2, and 3, respectively. According to the results of this study, the self–etching primer systems presented statistically similar behavior (p>0.05) to that of the total–etch adhesive system (used as a control), not only regarding marginal leakage at human enamel–composite resin interface, but also regarding the shear bond strength of the bovine enamel. However, the self–etching primer systems differed significantly (p>0.05) to each other, with better results for Clearfil Liner Bond 2V. In conclusion, the self–etching primer systems had a performance comparable to that of the total–etch adhesive system |
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ISSN |
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0 |
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Journal Name |
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egyptian dental journal |
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Volume |
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54 |
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Issue Number |
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1 |
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Publishing Year |
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2008 AH
2008 AD |
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Article Type |
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Article |
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Added Date |
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Sunday, February 21, 2010 |
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Researchers
| عماد خطاب | khattab, emad | Investigator | Doctorate | |
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