MARGINAL SEAL OF COMPOSITE INLAYS USING DIFFERENT POLYMERIZATION TECHNIQUES

The effect of indirect and semi-direct curing. systems of Cl II compos ite inlays on microleakage was investigated in vitro and compared to c onventional direct posterior composite restorations. Nearly identical Cl II cavities were restored with the same composite resin using diffe rent polymerization systems. Microleakage assessment was carried out a fter cyclic loading and thermal stressing by assessing the dye penetra tion. The data showed that ail inlay techniques resulted in improved m arginal sealing compared with conventional restorations. However, the indirect procedure resulted in significantly reduced microleakage comp ared to the semi-direct inlay techniques.