Abstract
The longevity of restorative materials depends on the resistance to masticatory forces. The present study was undertaken to evaluate the mechanical and microleakage properties of Cention-N with glass ionomer cement (GIC) and composite restorative materials. A total of 45 specimen blocks were prepared with 15 samples of each type of restorative material, namely Cention-N, GIC, and hybrid composite. Samples were subjected to load at crosshead speed of 0.75 ± 0.25 mm/min till the fracture of sample. Class V cavities were prepared on the buccal surface of orthodontically extracted premolars followed by restoration of each test material. All the surfaces of the tooth were coated with clear nail varnish except 1 mm around the margins of the restorations. These samples were immersed in 0.5% basic fuchsine dye and longitudinally sectioned and observed under stereomicroscope to check microleakage. The obtained data were statistically evaluated. We found the highest mean compressive and flexural strength for hybrid composite followed by Cention-N and least for GIC which is statistically significant (p < 0.001). Mean microleakage was least for Cention-N. Cention-N is a newer restorative material having higher mechanical properties with lesser microleakage. Cention-N is a newer restorative material having promising properties. This material can be used as an alternative restorative material.
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