Comparative evaluation of depth of cure of three bulk-fill composites- an invitro study

Thushara Sudhakaran., Gowrish. S. Bhat and Mithra. N. Hegde

Introduction: Composite is one of the widely used aesthetic restorative material since 1960’s. For decades, conventional composites were placed in maximum increments of 2 millimetres, because of the limited depth of cure. Bulk-fill composites are introduced as an alternative to the incremental layering technique which claims to enable restoration in thick layers up to 4 – 6 mm. So the aim of the study is to evaluate and compare the depth of cure of three bulk-fill composite restorative materials: nanofilled bulk-fill material (Filtek Bulk Fill Posterior Restorative), nanohybrid bulk-fill material (Tetric N-Ceram Bulk Fill) and posterior bulk-fill flowable resin material (SureFil SDR flow). Methodology: The depth of cure was assessed according to International Organization of Standard ISO 4049: 2009 and the data collected was statistically analyzed Results : The mean depth of cure values for SureFil SDR flow were 4.37±0.16 mm, followed by Filtek Bulk fill Posterior 3.84±0.15 mm and Tetric N Ceram Bulk Fill 3.64±0.22 mm. Conclusion: Within the limitation of the study posterior bulk-fill flowable resin material (SureFil SDR flow) showed the highest depth of cure than nanohybrid bulk fill composite (Filtek Bulk Fill Posterior Restorative and Tetric N Ceram Bulk Fill).

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