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
Abstract
[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.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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; http://dx.doi.org/10.1117/12.2211014
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KEYWORDS
Composites

Composite resins

Statistical analysis

Dentistry

Polymerization

Light sources

In vitro testing

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