The Wear of Different Dental Crown Restorative Materials Opposed to Zirconia Ceramic

【Objective】The purpose of this study was to evaluate the effects of microstructure to the wear of different kinds of restorative crown materials used in clinical and zirconia ceramic.【Methods】 Specimens were evaluated at a x50 and x500 magnification by a scanning electron microscope.The weight loss of opposing zirconia ceramic was measured to compare the wear properties.【Results】The results of scanning electron micrograph(SEM) of different materials were different.The weight loss of zirconia ceramic caused by four materials from small to large were gold alloy,nanoceramic,hydrothermal low-fusing ceramic,and D.SIGN(P0.05).【Conclusion】The microstructure of the restorative material is one of the important factors that influences the zirconia ceramic wear properties.