Mechanical and Physical Properties of Two Different Resin-based Materials: A Comparative Study

Aim The purpose of this study was to evaluate the degree of conversion (DC) of two different resin-based composite materials (nanofill composite and ormocer) and correlate it with some mechanical properties of these two restorative materials. Materials and methods Two different resin-based materials (Filtek Supreme XT and Admira) were tested. A total of 30 samples of each type of selected composite were prepared. Specimens were immersed in distilled water for 24 hours. Then, the specimens were subjected to DC, hardness, and diametral tensile strength (DTS) measurements. The data obtained were tabulated for statistical analysis. The t-test was used to detect the significant difference among the variables tested in this study. Furthermore, the interrelationship between the studied parameters was investigated using a simple correlation coefficient statistical test. Results Statistically significant differences were observed regarding DC, hardness, and DTS. Filtek Supreme XT presented the highest values. There was a positive correlation between DC and hardness. Also there was a correlation between DC and DTS, but it was not significant. Conclusion Under the tested experimental conditions, the DC of Filtek Supreme XT was higher than that of Accordingly, Filtek Supreme XT showed better mechanical properties. Clinical significance Filtek Supreme XT showed superior mechanical properties. Therefore, orthodontic bracket-based composite combinations may also be expected to perform well clinically over the lifetime of a bonded orthodontic appliance. How to cite this article Baeshen H, Alturki BN, Albishi WW, Alsadi FM, El-Tubaigy KM. Mechanical and Physical Properties of Two Different Resin-based Materials: A Comparative Study. J Contemp Dent Pract 2017;18(10):905-910.