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Scholars Journal of Dental Sciences | Volume-5 | Issue-02
Evaluation of Micro-Hardness of Different Bulk-Fill Resin- Based Composites
Nasser M. Al-Mhidy, Nashaat M. Magdy
Published: Feb. 28, 2018 | 96 115
DOI: 10.36347/sjds.2018.v05i02.006
Pages: 82-86
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Abstract
This study was conducted to evaluate surface micro-hardness of different bulk-fill resin-based composites. Forty cylindrical split molds (10 mm diameter and 2 mm thick) were constructed from Teflon. Four groups of specimens were prepared, ten per each material (n=40): three groups for different bulk-fill composites and one micro-hybrid composite as a control group. Micro hardness measurements were performed using a micro hardness tester with a Vickers indenter. There were high statistically significant difference between all the tested restorative materials (P<.0001). Sonic Fill bulk-fill and microhybrid Filtek z250 resin composite showed high Vickers micro-hardness values.