Abstract: Objective To investigate the effects of different polishing and glazing procedures on the surface roughness and wear behavior of dental zirconia ceramic .Methods 18 zirconia ceramic specimens were made and randomly divided into three groups （n ＝6）:two groups were respectively treated with polishing and glazing ,the surface of the third group was treated with nothing. Surface roughness values were measured. The volume loss of opposite talcum ceramic and tested specimens as well as natural enamel were also measured by the wear test. Results The surface roughness values of each group were 0.358±0.020、0.384±0.011、1.597±0.068μm. The surface roughness values of polished and glazed specimens were significantly lower than the specimens that were not treated（P<0.01）.There was no significantly difference between the surface roughness values of polished and glazed specimens ( P>0.05）.The volume loss of tested specimens was significantly less than the nature enamel（P<0.01）.The volume loss of polished specimens was significantly less than the glazed ones（P<0.01）.The volume loss of opposite talcum ceramic among groups was significantly more than the nature enamel（P<0.01）.The volume loss of opposite talcum ceramic by polished ceramics was significantly less than that of glazed ones（P<0.01）.Conclusions 　The polishing procedures of zirconia ceramic surface are clinically acceptable compared with glazing. Polished zirconia ceramic uses less material and antagonist wear than the glazed one.

Key words: glazing, Dental polishing, abrasion and wear, zirconia all-ceramic