Monoblocks :Hype or Hope!!! an In–Vitro Comparison of Push Out Bond  Strengths of Resilon with Two Different  Resin–Based Sealers

Dr.Priyanka Sarangi; Dr.Veerendra M Uppin

Volume : II, Issue : III, March - 2013

Monoblocks :Hype or Hope!!! an In–Vitro Comparison of Push Out Bond Strengths of Resilon with Two Different Resin–Based Sealers

Dr. Priyanka Sarangi, Dr. Veerendra M Uppin

Abstract :

Introduction: The purpose of this study was to evaluate the push–out bond strengths of different resinbased sealers..Methods: Sixty single–rooted human extracted teeth were used in this study. The teeth were instrumented and irrigated by using 5.25% NaOCl, 15% ethylenediaminetetraacetic acid, and sterile water. The teeth were then filled with Resilon/RealSeal, Resilon/RealSeal SE, or Resilon/AH–Plus sealer. The roots were then sectioned into 1–mm–thick slices and subjected to vertical loading to displace the obturating material toward the coronal side of the slice. The bond strength was then calculated and subjected to statistical analysis. Slices were examined by using a stereomicroscope at 30x to determine the mode of failure.Results: The mean push–out bond strengths were as follows: Resilon/RealSeal, 0.56 +/– 0.09MPa; RealSeal SE, 0.56 +/– 0.08 MPa; Resilon and Resilon/AH–Plus sealer, 0.95+/– 0.04 MPa.Conclusions: The push–out bond strengths of Resilon/ AH–Plus sealer were significantly (P < .05) higher than either Resilon/RealSeal or Resilon/RealSeal SE