1. Marginal analysis of resin composite restorative systems using optical coherence tomography

    Marginal analysis of resin composite restorative systems using optical coherence tomography

    Abstract: Objectives: To analyze marginal integrity of resin composites dental restorations using optical coherence tomography (OCT).Methods: Thirty extracted human premolars had occlusal cavities prepared and were randomly divided according to the restorative systems evaluated: Filtek P90™/P90 Adhesive System™, Filtek Z350™, and Filtek Z250™/Single Bond™ (3M/ESPE). The teeth were then stored in the dark for 24h in 0.9% saline solution. Restorations were finished and polished and stored again for 24h before thermocycling (500 cycles, 5–55°C). A commercially available OCT system was used (SR-OCT: OCP930SR/Thorlabs) with 930nm central wavelength. Cross-sectional images were obtained every ...

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