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Effect of Cissus Quadrangularis as an Antioxidant on the Bond Strength of Methacrylate Based Composite after Bleaching

Arthi Ananthan, Sebeena Mathew, Arthi .

Abstract


Aim: The aim of this study was to investigate the effect of Cissus Quadrangularis as an antioxidant on the bond strength of methacrylate based composite after bleaching.

Materials and Methods: 40 extracted single rooted teeth were divided into 2 groups based on composite build up after bleaching.  In group 1 (n=20) bleaching was followed by immediate composite buildup,

           In group 2(n=20)  bleaching was followed by composite buildup after 2 weeks. Both the groups were further subdivided into 2 subgroups (n=10)  based on whether antioxidant

           (Cissus Quadrangularis) is applied or not.  In subgroup 1A / 2A  no antioxidant was applied after bleaching. In subgroup 1B / 2B the antioxidant was applied after bleaching .Shear bond strength of all the specimens were tested under a universal testing machine at 1mm/min crosshead speed.

 Statistical Analysis: One way ANOVA test was carried out to analyze the difference in mean shear bond strength between four groups. A post hoc Games-Howell test was performed to ascertain which pairs differ significantly from one another.

  Results: Statistically significant difference was observed between all the groups. But significantly higher shear bond strength was observed in bleaching followed by delayed composite buildup group (2A / 2B). Among all the groups antioxidant (Cissus Quadrangularis) applied groups showed higher shear bond strength (1B/2B).

 Conclusion: Bleaching followed by antioxidant (Cissus Quadrangularis) application followed by delayed composite buildup with minimum of 2 weeks improves shear bond strength.

 Keywords: Bleaching , cissus quadrangularis , composite buildup , shear bond strength

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References


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