Özet:

Purpose: Parallel to today’s technological developments, resin-based nanocomposite materials have a wide range of use in dentistry.This study aimed at measuring the physical characteristics of materials with thermal analysis techniques when the control temperature program of the new restorative material obtained by participating in graphene material in different proportions in the structure of composite materials was applied.Tools and Methods: The study used 4 different new generation composite materials Tetric EvoCeram Bulk Fill Composite (Ivoclar-Vivadent, Austria) (TEC), X-tra base Composite (Voco Cuxhaven Germany) (XTB), GC Essentia Composite (GC Corporation, Japan) (GCE), and BRILLIANT EverGlow Composite (Coltene, USA) (BEG).®Analysis of 0. 5 and 2% graphene material participated in the structure of composite materials that were not polymerized with homogeneous mixers in dark environments. After the structural characterization of the materials obtained, the thermogravimetric analysis (TGA) and differential thermal analysis (DTA) of these materials were evaluated. In the analysis of data, the one-way and two-way variance analysis (ANOVA) method was used to identify the interactions of variants with the control group. The statistical significance was assessed at the levels P<0.05 and P<0.001. The number of samples for each material is 10 (n=10). Results: When TGA analysis results were studied, 2% of graphene contribution in the TEC and XTB group caused weakness in the chemical structure of the material, causing mass loss in 451 °C of the material. When the results of the DTA analysis were studied, it was detailed that the contribution of graphene by 2% and 0.5% strengthens the chemical structure of some materials, while some are weakened. The contribution of bioyum materials such as graphene to composite materials in different proportions strengthens the chemical and physical structure of materials, while in some composite groups it has caused the opposite effect.

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