الفهرس يوجد فقط 14 صفحة متاحة للعرض العام
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المستخلص
In this study the polymerization shrinkage and polymerization shrinkage stresses were evaluated. The effect of shrinkage stresses on Microleakage in class V cavities and on bond strength to superficial occlusal dentin were also evaluated. In another part of this investigation the degree of conversion of the three composite resin restorative materials included in this study was assessed using FTIR. The morphology of the interfacial zone between composite and dentin was examined using the scanning electron microscope method. The results of this study showed that
a. the composite resin IntenS gave the least amount of shrinkage stresses and the least polymerization shrinkage percent. The highest values of polymerization shrinkage and stresses were recorded with the composite material Tetric Ceram. Admira recorded intermediate values of shrinkage stresses and polymerization shrinkage percent.
b. The polymerization stresses were higher when recorded in class V cavities than when recorded at the occlusal superficial dentin.
c. The stresses recorded at the interface were higher than stresses recorded above the interface.