29 February 2016 Evaluation of Vickers hardness of bulk-fill composites cured by different light sources
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Proceedings Volume 9692, Lasers in Dentistry XXII; 96920J (2016); doi: 10.1117/12.2211014
Event: SPIE BiOS, 2016, San Francisco, California, United States
[Objective] The current in vitro study was performed to evaluate Vickers hardness (VHN) of two different composite resins that were cured by using two different light curing units. [Materials and Methods] Porcelain tube samplers were used to fabricate composite cylinders from either Tetric Evoceram BulkFill (BF; Ivoclar/Vivadent, USA) or SonicFill composite (SF; Kerr, USA). Each composite type had 12 cylindrical specimens, and each specimen was cured with either Blue-phase N light-cure (Bp; Polywave, Ivoclar/Vivadent, USA) or Elipar S10 (El; Monowave, 3M ESPE, Germany). The VHN data were analyzed and tested by using Mann-Whitney U test at a significance level of 5%. [Results] Statistical analyses demonstrated an interaction between the type of composite and the type of light curing source. Significant differences (P<0.05) were recorded for all groups with higher VHN hardness of SF-El and lowest for BF-El. [Conclusions] It can be concluded that the surface hardness of bulk-fill composite is not dependent on the type of light-cure. This research was supported by King Abdulaziz University.
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Turki A. Bakhsh, Mohammed A. Yagmoor, Fahad M. Alsadi, Ahmad Jamleh, "Evaluation of Vickers hardness of bulk-fill composites cured by different light sources", Proc. SPIE 9692, Lasers in Dentistry XXII, 96920J (29 February 2016); doi: 10.1117/12.2211014; https://doi.org/10.1117/12.2211014


Composite resins

Statistical analysis



Light sources

In vitro testing

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