Comparison of Micro Shear Bond Strength(µsbs) to Dentin of Universal, Etch-and-Rinse and Self-Etch Adhesives
Objectives: The aim of this study was to compare the shear bond strength (SBS) of various adhesive systems to dentin.
Materials and Methods: In this experimental study, 60 healthy third molars were divided into 4 groups. Dental discs of middle dentin were prepared (4 mm diameter and 2 mm height). Dentin surfaces were bonded with one of four types of adhesives. A: Single Bond (3M ESPE), Scotchbond Universal (3M ESPE) in two mode (etch and rinse(B) and self-etch(C)) and D: Clearfil SE Bond (Kuraray Noritake Dental) were used in this study. After the application of adhesive systems according to manufacture instructions, a composite buildup (Vit-l-escence ) were bonded to dentin surfaces. The μSBS test was performed using a universal testing machine at a crosshead speed of 1 mm/min. Data were analyzed with one-way ANOVA and tukey’s Test. (α=0.05)
Results: The µSBS for C (15.8± 6.08 MPa) > D (15.24± 4.6 MPa) > B (11.68±4.07MPa) > A(11.24±3.74 MPa). Significant difference was seen just between A and B Groups. (P value=0.049).
Conclusion: It can be concluded that self-etch mode of universal bond dentin had reliable result in bond to dentin.
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