A Comparative Study of Shear Bond Strength of Self Adhesive Resin Cement and Self Etching Resin Cement to Dentin

Abstract

Introduction and aim: Resin cement systems used in bonding All-ceramic restorations have developed from conventional total etch to self etching and self adhesive ones.  This study aimed to compare shear bond strength between self etching resin cement (Bifix QM) with its bond Futurabond and self adhesive (Rely X U 200) on dentin.

Materials and Methods: Twenty e-max cylinders were cemented on dentin of buccal surface of freshly extracted third molars. The sample was divided into two groups. Self etching resin cement (Bifix QM) with its bond Futurabond was used with the first group, whereas self adhesive resin cement (Rely X U 200) was used in the second group. Shear bond test was applied to the whole sample. Statistical analysis was then performed using T-Student by SPSS version 13.

Results: The mean value of shear bond strength was 12.76± 1.7 Mpa for Bifix, and 11.7± 1.3 Mpa for Rely X U 200. No significant difference was found between them.

Conclusion: The shear bond strength was the same when using self etching (Bifix QM) and self adhesive resin cement (Rely x U200( to bond e-max to dentin.