An In-vitro Comparison of Bond Strength of Different Sealers/Obturation Systems to Root Dentin Using Push-out Test at 2 Weeks and 3 Months Post Obturation

Objective: To evaluate the push-out bond strength and failure modes of different sealers/obturation systems to intra-radicular dentin at 2 weeks and 3 months' post obturation compared to AH Plus®/gutta-percha. Materials and Methods: One hundred and eighty (180) root slices from sixty (60) single-canal anterior teeth were prepared and assigned to 5 experimental groups (n=36 in each group), designated as G1: AH Plus®/Gutta-percha; G2: TotalFill BCTM sealer/BC coated gutta-percha; G3: TotalFill BCTM sealer/gutta-percha; G4: EndoREZ® sealer/EndoREZ® coated gutta-percha and G5: EndoREZ® sealer/gutta-percha. Push-out bond strengths of eighteen (18) root slices in each group were assessed at 2 weeks and the other 18 at 3 months' post obturation using universal testing machine. Data were analyzed using repeated measures ANOVA. Independent t-test was used to compare mean push-out bond strength for each group at 2 weeks and 3 months' interval. Results: The mean push-out bond strengths of G4 and G5 were significantly lower than G1, G2 and G3 (p

from # All Medicine by Alexandros G. Sfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2hgBWru
via IFTTT