等离子体表面改性对氧化锆陶瓷与树脂粘接耐久性的影响  

Effect of plasma surface modification on bonding durability of zirconia ceramics and resin

作　　者：章青青 唐旭炎[1,2] 曹颖 倪国华 隋思源 Zhang Qingqing;Tang Xuyan;Cao Ying;Ni Guohua;Sui Siyuan(Stomatologic Hospital of Anhui Medical University,Hefei 230032;Anhui Province Key Laboratory of Oral Diseases Research,Hefei 230032;Institute of Plasma Physics,Chinese Academy of Sciences,P.O.Box 1126,Hefei 230031)

机构地区：[1]安徽医科大学附属口腔医院,合肥230032 [2]安徽省口腔疾病研究中心实验室,合肥230032 [3]中国科学院等离子体物理研究所,合肥230031

出　　处：《安徽医科大学学报》2022年第9期1409-1413,共5页Acta Universitatis Medicinalis Anhui

基　　金：安徽省自然科学基金(编号:2008085MH254)。

摘　　要：目的探究低温等离子体改性处理对氧化锆陶瓷表面微观形态及粘接耐久性的影响。方法将180个氧化锆瓷片随机分为5组(n=36),A组:空白组;B组:喷砂组;C组:氮气(N_(2))等离子体组;D组:氧气(O_(2))等离子体组;E组:氩气(Ar)等离子体组。观察各组氧化锆陶瓷的表面亲水性、微观形貌,并检测各组表面元素和官能团的变化。制作粘接试件,每组粘接试件随机分成2个亚组(n=15),分别接受0、10000次冷热循环后进行剪切强度测量,对测量结果进行统计学分析并分析断裂模式。结果与A组比较,B、C、D、E组表面接触角明显减少,差异有统计学意义(P<0.001)。与A组比较,C、D、E组表面形态无显著改变,B组表面形态则显著改变。X射线光电子能谱(XPS)分析显示等离子体改性后氧化锆陶瓷表面氧元素增加,碳元素减少,碳/氧比值降低。剪切强度结果显示,A组即刻剪切粘接强度低于其余四组,差异有统计学意义(P<0.001);人工老化后A组剪切粘接强度显著低于其余四组,且A、B两组人工老化前后剪切粘接强度比较差异有统计学意义(P<0.001)。结论三组低温等离子体均可在不改变氧化锆陶瓷表面形貌的情况下,获得与树脂水门汀之间较好的粘接强度和粘接耐久性。Objective To evaluate the effects of low temperature plasma modification on the surface morphology and bonding durability of zirconia ceramics.Methods 180 pieces of zirconia ceramic(Y-TZP)were randomly divided into 5 groups(n=36).Group A:blank group;Group B:sandblast group;Group C:nitrogen(N_(2))plasma group;Group D:oxygen(O_(2))plasma group;Group E:argon(Ar)plasma group.The surface hydrophilicity and microstructure of zirconia ceramics were observed,and the changes of surface elements and functional groups were detected.Each group of bonded specimens was randomly divided into two subgroups(n=15).After receiving 0 and 10000 cycles of heat and cold,the shear strength was measured.The measured results were statistically analyzed and the fracture mode was analyzed.Results The surface contact angles of groups B,C,D and E were significantly lower than those of group A,with statistically significant differences(P<0.001).Compared with group A,the surface morphology of group C,D and E did not significantly change,while that of group B significantly changed.XPS showed that the surface carbon decreased,oxygen increased and carbon/oxygen ratio decreased after plasma treatment.SBS results showed that the immediate shear bonding strength of group A was lower than that of the other four groups(P<0.001),and there was no significant difference in the immediate shear bonding strength of groups B,C,D and E(P>0.05);After artificial aging,the shear bonding strength of group A was significantly lower than that of the other four groups,and the difference of shear bonding strength between groups A and B before and after artificial aging was statistically significant(P<0.001).Conclusion The zirconia ceramics achieves better bonding strength and durability with resin cement through three kinds of low temperature plasmas,without changing the surface morphology.

关 键 词：氧化锆 低温等离子体 表面形貌 剪切粘接强度 耐久性 

分 类 号：R783.1[医药卫生—口腔医学]