Abstract
Aim of this study was to investigate and compare the depth of cure of two recently introduced flowable composites, MI FIL (MFI) and MI Flow (MFL), with two conventional and three nanofiller containing composites. For Knoop hardness (KHN) profiling specimens were produced in split molds. Hardness indentations were made at 250 μm distance along the center line and two parallel lines, 0.5 mm apart. KHN of all resins decreased with depth. MFI showed higher KHN than MFL at all depths. All hardness profiles followed second order polynomials with co-efficients r2 > 0.955 (p < 0.001). Twenty seconds light activation proved insufficient to reach 2 mm depth of cure with the flowable resin composites MFI and MFL. From the seven resin restoratives tested only two were cured to a depth of ≥2 mm, when 80% of the top hardness is considered a relevant threshold for sufficient cure.
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© 2012 Springer
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Hoshino, T., Kanehira, M., Finger, W.J., Komatsu, M. (2012). Curing Depth of New Sister Resin Composites of High and Low Consistency. In: Sasaki, K., Suzuki, O., Takahashi, N. (eds) Interface Oral Health Science 2011. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54070-0_75
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DOI: https://doi.org/10.1007/978-4-431-54070-0_75
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-54069-4
Online ISBN: 978-4-431-54070-0
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