微弧氧化；时间；结合强度;肽_

不同时间对钛表面微弧氧化处理后与瓷结合强度的影响

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微弧氧化；时间；结合强度;肽,,微弧氧化；时间；结合强度;肽,1材料和方法,2结果,3讨论

     Effects of microarc oxidation time on bonding strength of titanium to porcelain

    LI JianXue1, ZHANG YuMei1, HAN Yong2, LIU XiaoChen1, YU Fan1

    1Department of Prosthodontics, College of Stomatology，Fourth Military Medical University，Xian 710033，China， 2State Key Laboratory for Mechanical Behavior of Materials, Xian Jiaotong University, Xian 710049, China

    【Abstract】 AIM：To study the effects of time length of microarc oxidation (MAO) on the titaniumceramic bonding strength. METHODS： Titanium samples were treated with MAO in a Na2SiO3 electrolytic solution with duty cycle 0.04, frequency 500 Hz, and voltage 300 V. According to the different oxidation time, experimental groups consisted of 3, 6, 10 min groups. The nonMAO samples were used as a control group. The surface of the samples was observed by scanning electron microscope (SEM). The samples were bonded to porcelain. The bonding strength of the samples was measured by a threepoint bending test. RESULTS： The bonding strength (MPa) of the samples to porcelain in 3, 6, 10 min groups and control group was 56.4±0.8, 40.4±2.3 ......

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