microleakage in class ii composite restorations ... - ePrints@USM

CHAPTER FOUR ......................................................................................................... 68RESULTS ...................................................................................................................... 684.1 Reproducibility of measurements ............................................................................. 684.2 Comparison of microleakage between the self-etch, one-step, one-component (GBond) and etch and rinse (Adper single bond 2) adhesive systems ................................ 684.3 Comparison of microleakage between nano-composite (Filtek Z350) andmicrohybrid composite (Filtek Z250) ............................................................................. 694.4 Comparison of microleakage between nano-composite bonded with self-etch, onestep,one-component adhesive system (group 4) and other study groups (group 1 & 2 &3) ..................................................................................................................................... 70CHAPTER FIVE .......................................................................................................... 75DISCUSSION ................................................................................................................ 755.1 Adhesive Systems Comparison ................................................................................ 765.2 Resin Composites Comparison ................................................................................. 815.3 Comparison of Nanocomposite Bonded with Self-Etch, One–Step, One-ComponentAdhesive Group with Other Study Groups ..................................................................... 825.4 Confocal Laser Scanning Microscope (CLSM)........................................................ 84CHAPTER SIX ............................................................................................................. 86CONCLUSIONS AND RECOMMENDATIONS ...................................................... 866.1 Conclusions ............................................................................................................... 866.2 Recommendations ..................................................................................................... 876.2.1 Recommendations for future research ............................................................... 876.2.2 Clinical recommendations ................................................................................. 876.2.3 Limitation of the study ....................................................................................... 88vii