IADR Abstract Archives

Evaluation of the Adhesion of Glass-fiber Posts to Intraradicular Dentin

Objectives: The purpose of this study was to compare interfacial strength in different thirds of the root canal among glass-fiber endodontic posts luted with four different adhesive luting agents, using push-out test method.

Methods: A total of 44 extracted human single-rooted teeth were randomly divided in four groups and restored using WhitepostDC glasss-fiber posts (FGM, Joinville, SC, Brazil) and following luting agents: All Bond SE/Duo-Link (ABSE) (Bisco, Inc, Schaumburg, IL, USA), All Bond 3/Duo-Link (AB3) (Bisco, Inc, Schaumburg, IL, USA), BisCem (BC) (Bisco, Inc, Schaumburg, IL, USA), Clearfil ED primer II/Clearfil Esthetic Cement (CLF) (Kuraray Medical Inc, Okayama, Japan). One week after luting procedures, the samples were thermocycled in water (1000×, 5/55 °C, dwelling time of 30 s), and then embedded in acrylic resin. Three sections (cervical, middle and apical) of 2 mm thickness were prepared from each specimen, and each section was subjected to the push-out test method. One additional specimen for each group was prepared for scanning electron microscopy analysis. The data were calculated and analyzed using the Kolmogorov-Smirnov test, two-way ANOVA, one-way ANOVA, and the Scheffe test. Significance was set at p < 0.05. Results: The push-out bond strength values for BC and ABSE (13.50±2.24 MPa, 12.42±2.35 MPa, respectively) were not significantly different (p > 0.05), but were both significantly higher than the means for AB3 and CLF (10.22±2.23 MPa, 9.08±1.96 MPa, respectively) (p < 0.001). There were significant differences in bond strength among root thirds, with a reduction in values from the cervical to apical third (p < 0.05).

Conclusion: Adhesive luting systems with different chemical formulations and applications yielded significantly different bond strengths to different regions in root dentin.


Continental European, Israeli, Scandinavian Divisions Meeting
2009 Continental European, Israeli, Scandinavian Divisions Meeting (Munich, Germany)
Munich Germany
2009
47
Scientific Groups
  • Önay, Emel Olga  ( Baskent University, Ankara, N/A, Turkey )
  • Korkmaz, Yonca  ( Baskent University, Ankara, N/A, Turkey )
  • Kiremitci, Arlin  ( Hacettepe University, School of Dentistry, Ankara, N/A, Turkey )
  • Karabulut, Erdem  ( Hacettepe University, Ankara, N/A, Turkey )
  • Poster Discussion Session
    Oral Poster Discussion I
    09/10/2009