不同处理方法对瓷表面微观形貌的影响  

Influence of different surface treatments on porcelain surface topography

作　　者：台银霞[1] 朱宪春[1] 闫森[1] 刘畅[2] 张娴[1] 史学明[1] 

机构地区：[1]吉林大学口腔医院正畸科,长春130021 [2]长春市口腔医院正畸科,长春130000

出　　处：《华西口腔医学杂志》2013年第1期57-60,共4页West China Journal of Stomatology

基　　金：吉林省卫生厅科技计划基金资助项目(2009Z006)

摘　　要：目的研究不同瓷表面处理方法对瓷表面微观形貌的影响。方法制备6组金属烤瓷试样，分别在瓷表面进行如下处理：A组不作处理（对照组），B组采用质量分数9．6％氢氟酸（HF）酸蚀，c组用金刚砂车针与HF联合处理，D、E、F组分别用0．75、1．05、1．45W的Nd：YAG激光与HF联合处理。处理后的试件用扫描电子显微镜（SEM）观察，观察其表面形貌的变化。结果经不同处理后瓷表面的微观形貌不同；E组经1．05w的Nd：YAG激光与HF联合处理，瓷表面可见网格形裂纹，裂纹的侧壁及底部布满类圆形小孔，裂纹内壁圆钝，并且观察到直径约为20“m的圆形弹坑样结构，其内壁附有直径为1～5txm不等的圆形隐窝，形成倒凹结构。结论能量参数为1．05W的Nd：YAG激光与9．6％HF联合处理瓷面后可使瓷面均匀粗化，是一种有效的瓷表面处理方法。Objective To evaluate the influence of different surface treatments on porcelain surface topography. Methods Metal ceramic prostheses in 6 groups were treated according to the different surface treatment methods, and the surface topography was observed through scanning electron microscope （SEM）. Group A was the control one （untreated）, group B was etched by 9.6% hydrofluoric acid（HF）, group C was deglazed by grinding and then etched by 9.6% HF, group D was treated with Nd： YAG laser irradiation （0.75 W） and HF etching, group E was treated with Nd： YAG laser irradiation（1.05 W） and HF etching, and group F was treated with laser irradiation（1.45 W） and HF etching. Results Surface topography was different in different groups. A lot of inerratic cracks with the shapes of rhombuses and grid, and crater with a shape of circle were observed on the ceramic surface after treatment with energy parameters of 1.05 W Nd： YAG laser irradiation and 9.6% HF etching （group E）. Surface topography showed a lot of concaves on the inner wall of the cracks, and the concaves with diameter of 1-5μm could be observed on the inner wall of the holes, which had a diameter of 20μm under SEM. Conclusion The use of Nd： YAG laser irradiation with the energy parameters of 1.05 W and the HF with a concentration of 9.6% can evenly coarsen the porcelain surface, that is an effective surface treatment method.

关 键 词：表面处理 扫描电子显微镜 氢氟酸 ND YAG激光 

分 类 号：R783[医药卫生—口腔医学]