中国组织工程研究

中国组织工程研究 ›› 2012, Vol. 16 ›› Issue (8): 1435-1438.doi: 10.3969/j.issn.1673-8225.2012.08.023

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

表面处理方法及黏结剂种类影响氧化锆的剪切强度****☆

邵龙泉1，胡  琛1，孙  挺1，刘晓芳2，温  宁3，邓  斌3   

  1. 1南方医科大学南方医院口腔科，广东省广州市   510515；2广东省口腔医院，广东省广州市  510280；3解放军总医院口腔科，北京市  100853
  • 收稿日期:2011-09-17 修回日期:2011-11-03 出版日期:2012-02-19 发布日期:2012-02-19
  • 作者简介:邵龙泉☆，男， 1971年生，辽宁省沈阳市人，汉族，2003年解放军第四军医大学毕业，博士，教授，主任医师，主要从事口腔全瓷与硅橡胶修复材料的研究。shaolongquan@yahoo.com.cn
  • 基金资助:

    国家自然科学基金项目(50872152)；广东省自然科学基金项目(9151051501000072)；广州市白云区科技计划项目(2010-KZ-20)；南方医科大学南方医院院长基金(2009B016)。

Effects of surface treatments and cement types on the shear strength of zirconia 

Shao Long-quan1, Hu Chen1, Sun Ting1, Liu Xiao-fang2, Wen Ning3, Deng Bin3   

  1. 1Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou  510515, Guangdong Province, China; 2Guangdong Provincial Stomatological Hospital, Guangzhou  510280, Guangdong Province, China; 3Department of Stomatology, General Hospital of Chinese PLA, Beijing  100853, China
  • Received:2011-09-17 Revised:2011-11-03 Online:2012-02-19 Published:2012-02-19
  • About author:Shao Long-quan☆, Doctor, Professor, Chief physician, Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong Province, China shaolongquan@ yahoo.com.cn
  • Supported by:

    National Natural Science Foundation of China, No. 50872152*; Natural Science Foundation of Guangdong Province, No. 9151051501000072*; Science and Technology Project of Baiyun District of Guangzhou City, No. 2010-KZ-20*; Presidential Foundation of Nanfang Hospital, Southern Medical University, No. 2009B016*

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摘要：

背景：选择适当的表面处理方法，选用适宜的黏结剂种类，可以有效地提高临床氧化锆修复体的黏结效果。
目的：研究氧化锆表面不同处理方法和黏结剂种类对Upcera氧化锆陶瓷之间剪切强度的影响。
方法：将72个试件采用600#砂纸打磨抛光分为6组，分别选择240#砂纸打磨粗化、喷砂、硅烷化3种表面处理方法，电镜观察处理前后的表面形貌。黏结剂选择Panavia F树脂水门汀和Fuji CEM树脂加强型玻璃离子水门汀，加压黏结固定24 h后，万能实验机测定剪切强度数值，进行析因方差分析。
结果与结论：喷砂组剪切强度高于240#砂纸打磨组和硅烷化组(P < 0.05)。树脂水门汀的剪切强度显著高于树脂加强型玻璃离子水门汀(P < 0.05)。喷砂后试件表面形貌最为粗糙，240#砂纸打磨和硅烷化对表面形貌的改变较小。提示喷砂是提高树脂水门汀和树脂加强型玻璃离子水门汀与氧化锆陶瓷剪切强度的有效方法，而砂纸打磨和硅烷化并不能显著提高剪切强度。对于临床黏结条件差的修复体，树脂水门汀可提供更高的黏结强度。

关键词: 氧化锆, 表面处理, 黏结剂, 剪切强度, 口腔生物材料

Abstract:

BACKGROUND: Reasonable choice of surface treating method and cement can improve the bond performance effectively when using zirconia restorations in clinic.
OBJECTIVE: To evaluate the effects of different surface treatments and types of cements on the shear strength of Upcera zirconia.
METHODS: Seventy-two zirconia ceramic samples after sanding with 600# water sandpaper were divided into six groups. Three different surface treating methods were used respectively as follows: hand-polishing with 240# water sandpaper, sand blasting and silanization. Before and after the surface treatment, the samples were observed by scanning electron microscope. Two different luting cements (Panavia F and Fuji CEM) were selected. After 24 hours of pressurized bonded fixation, the shear strengths were measured by universal testing machine and analyzed with factorial variance analysis.
RESULTS AND CONCLUSION: The shear strength in the sand blasting group was significantly higher than other groups (P < 0.05). The shear strength of the Panavia F group was higher than that of the Fuji CEM group (P < 0.05).The surface morphology of samples treated with sand blasting was rougher compared with the other two. Findings of this study revealed that sand blasting can effectively enhance the shear strength of zirconia ceramic to both resin cement and glass ionomer cement; on the contrary, sand paper polishing and silanization cannot affect the shear strength. What is more, resin cement performs better in improving the bond performance of zirconia ceramic restorations.

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