Abstract
Aims and Objectives: This study aimed to analyze the color and translucency of a recently introduced bulk-fill resin composite with enhanced opacity. Materials and Methods: Twenty A3 shade composite disks, each of Filtek Bulk Fill (BF) and Filtek One Bulk Fill (OBF), were prepared with 4mm thickness. Two different backgrounds (white and black) and an intrinsic color for each material were used to ascertain the translucency parameter (TP) between white and black backgrounds, and to simulate oral environment darkness (between the black background and the intrinsic color of resin composite). Data collected were analyzed by the Mann–Whitney U test (P < 0.05). Results: The OBF disks showed significantly higher TP values (P < 0.001) than those of the BF. Regarding the ΔE* values for the masking ability of the oral cavity darkness, although OBF showed a statistically better masking ability than BF at 4mm thickness (z = 2.63, P = 0.009), none of them recorded the clinically acceptable threshold. Conclusion: The composition of the resin was shown to have a clear effect on the translucency and masking ability. The clinical significance is that whereas OBF appears to outperform BF, neither of their performances reach clinical acceptability.
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