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Year : 2011  |  Volume : 2  |  Issue : 2  |  Page : 94-97

Comparative evaluation of bond strength of three contemporary self-etch adhesives: An ex vivo study

1 Department of Conservative and Endodontics, Subharti Dental College, Meerut, India
2 Department of Conservative and Endodontics, DAV Dental College, Yamunanagar, Yamunanagar (UP), India

Correspondence Address:
Vineeta Nikhil
Flat # 1, R- Block, Swami Vivekanand University Campus, NH-58, Delhi-Haridwar-Meerut Bypass, Meerut-250005, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0976-237X.83068

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Aim: This study evaluated the effect of 2-hydroxymethyl methacrylate (HEMA) and the type of solvent on the tensile bond strength of the following three self-etch adhesives: Adper easy one (HEMA-rich adhesive) which contained ethanol, G-Bond (HEMA-free adhesive) which contained acetone, and Xeno V (HEMA-free adhesive) which contained butanol as a solvent. Material and Methods: Intact mandibular molars were mounted in self-cured resin and the occlusal surfaces were ground with # 600 SiC paper. Adhesives were applied on the prepared dentinal surfaces and the resin composite was condensed in the split brass mold (5 × 3 mm) placed over the adhesive surface. The specimens were stored in normal saline and placed in incubator at 37°C. After 24 hours, the specimens were tested in tensile mode at a crosshead speed of 1 mm/min. Statistical analysis was done using One way ANOVA and Tukey's HSD test. Results: The mean bond strengths of Adper easy one, G-Bond, and Xeno V were 12.41 MPa, 10.09 MPa, and 8.67 MPa, respectively. Conclusions: Comparison of contemporary adhesives in this ex vivo study revealed that the ethanol-based HEMA-rich self-etch adhesive is better than HEMA-free self-etch adhesive that contained acetone and butanol as the solvents, when compared in terms of bond strength.

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