How Can Different Polishing Timing Influence Methacrylate and Dimethacrylate Bulk Fill Composites? Evaluation of Chemical and Physical Properties

Monterubbianesi, Riccardo; Tosco, Vincenzo; Sabbatini, Simona; Orilisi, Giulia; Conti, Carla; Özcan, Mutlu; Orsini, Giovanna; Putignano, Angelo

doi:10.1155/2020/1965818

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Monterubbianesi, R., Tosco, V., Sabbatini, S., Orilisi, G., Conti, C., Özcan, M., Orsini, G., & Putignano, A. (2020). How Can Different Polishing Timing Influence Methacrylate and Dimethacrylate Bulk Fill Composites? Evaluation of Chemical and Physical Properties. BioMed Research International, 1965818. https://doi.org/10.1155/2020/1965818

Abstract

The polishing procedure is commonly performed after direct composite restorations, and little information exists regarding the right timing during which it should be performed on bulk fill composites. This study investigated the effect of polishing timing on the degree of conversion (DC), Vickers microhardness (VMH), and surface morphology of a methacrylate- (MET-) and dimethacrylate- (DMET-) based bulk fill composite, by using FT-NIR, microhardness tester, and SEM. Composite samples were divided as follows: in Group I (immediate), sa