抛光对2种全瓷材料表面粗糙度及磨耗性能的影响  

The effect of polishing on the surface roughness and abrasion resistance of two kinds of ceramics materials

作　　者：张凯[1] 吴凤鸣[1] 光寒冰[2] 

机构地区：[1]南京医科大学口腔医学研究所南京医科大学附属口腔医院修复科,江苏南京210029 [2]南京医科大学附属口腔医院义齿研制中心,江苏南京210029

出　　处：《口腔医学》2014年第1期39-42,共4页Stomatology

基　　金：江苏高校优势学科建设工程资助项目(2011-137)

摘　　要：目的研究抛光对2种全瓷材料表面粗糙度及磨耗性能的影响。方法用表面粗糙度(Ra)值和扫描电子显微镜分析抛光对Emax铸瓷和Everest二氧化锆2种全瓷材料表面粗糙度的影响,并通过磨耗实验观察抛光对2种全瓷材料摩擦磨耗性能的影响。结果无论是表面粗糙度值还是自身体积损失量及对磨滑石瓷的磨耗体积损失量,2种全瓷材料的抛光组均小于不处理组(P<0.05)。结论表面抛光可以降低全瓷材料的表面粗糙度,而且可减少全瓷修复体对天然牙的磨耗,提高自身耐磨性。Objective To investigate the effect of polishing on the surface roughness and abrasion resistance of two kinds of ceramics materials. Methods The surface roughness value and scanning electron microscopy（SEM） were used to analyze the influence of polis hing on the surface roughness of two kinds of ceramics materials： Emax porcelain and Everest zirconium dioxide. The effects of polis hing on wear property were also evaluated by wear test. Results The ceramic surface became much smoother after polishing （ P 〈 0.05）. The polished specimens caused significantly lower volume loss of specimens and opposite talcum ceramic than the unpolished ones（P 〈0.05）. Conclusions Surface polishing could decrease the surface roughness of the ceramics. The polishing procedures could also reduce the wear of the natural enamel and increase the abrasive resistance of ceramics.

关 键 词：抛光 磨耗 全瓷 

分 类 号：R783.1[医药卫生—口腔医学]