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Torres, C.R. et al.

Carlos Rocha Torres, Daphne Câmara Barcellos, César Rogério Pucci, Gabriela de Morais Gouvêa Lima, Cristiana Martins Rodrigues, Mariana Siviero,

Influence of methods of application of self-etching adhesive systems on adhesive bond strength to enamel.

PURPOSE: To assess the influence of variations in the application technique of self-etching adhesive systems on the adhesive bond strength to enamel. MATERIALS AND METHODS: One hundred thirty bovine teeth were used and divided into 13 groups. The teeth were embedded in acrylic resin, ground until a flat enamel area was exposed, and polished with 600-grit abrasive paper. The self-etching adhesive systems One Up Bond F, Clearfil SE Bond, Self & Etch were used, and the conventional adhesive Magic Bond and acid etching were used as the control group. One or two layers of the self-etching systems were actively or passively applied. Composite cylinders were made over the bonding area. The samples were submitted to shear bond testing at a speed of 1 mm/min. Statistical analysis of the data was performed using two-way ANOVA, followed by Tukey's test at a 5% level of significance. RESULTS: Significant variations were observed for the factors type of adhesive (p = 0.001, F = 193,3594, df = 3) and application technique (p = 0.001, F = 29,9119, df = 1). No significant interaction was found between the two factors (p = 0.08). The adhesives Clearfil SE Bond and One Up Bond F presented significantly higher adhesive bond strength means than Self & Etch. The active application of two layers resulted in higher bond strength means than the other techniques. CONCLUSION: The application technique had a significant influence on adhesive bond strength to enamel.[1]

References

Influence of methods of application of self-etching adhesive systems on adhesive bond strength to enamel. Torres, C.R., Barcellos, D.C., Pucci, C.R., Lima, G.M., Rodrigues, C.M., Siviero, M. J. Adhes. Dent (2009) [Pubmed]

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