Comparison of Microleakage and Compressive Strength of Different Base Materials

This study compared the microleakages and compressive strengths of various base materials.<br/>To evaluate microleakages, 50 extracted permanent premolars were prepared. The teeth divided into 5 groups 10 each according to materials. Cavities with a 5.0 mm width, 3.0 length, depth formed on buccal surfaces teeth. After filling cavities different materials, composite resin was used for final restoration. Each specimen immersed in 2% methylene blue solution then observed under stereoscopic microscope (× 30). To strength, cylindrical specimens prepared material. A universal testing machine measure strength.<br/>The microleakage highest Riva light cure<sup>TM</sup> group lowest Biodentine<sup>TM</sup> Well-Root<sup>TM</sup> PT groups. For strengths, all groups, acceptable strength values materials found. Fuji II LC<sup>TM</sup> group.