深冷处理技术对口腔中熔铸造合金耐磨性的影响

华西口腔医学杂志

深冷处理技术对口腔中熔铸造合金耐磨性的影响

赵鹃,朱智敏,陈孟诗

610041 四川大学华西口腔医院修复科(赵鹃,朱智敏),四川大学建筑及环境学院基础力学实验室(陈孟诗)

收稿日期:2003-06-25 修回日期:2003-06-25 出版日期:2003-06-20 发布日期:2003-06-20

The Effect of Cryotreat on the Wear Resistance of the Medium Melting-point Castable Alloy

ZHAO Juan*,ZHU Zhimin,CHEN Mengshi.

*Department of Prosthodontics, West China College of Stomatology, Sichuan University, Chengdu 610041, China

Received:2003-06-25 Revised:2003-06-25 Online:2003-06-20 Published:2003-06-20

摘要/Abstract

摘要：

目的　以SDA-Ⅱ型中熔合金为对象 ,研究深冷处理技术对口腔中熔铸造合金耐磨性的影响 ,从而为深冷处理技术引入口腔修复领域进行初步的探索。方法　 1 5个试件分为 3组 ,分别为对照组、深冷处理组以及深冷处理加保温处理组 ,利用喷磨法和失重法测量喷磨前后试件的失重量 ,以此来代表其耐磨性 ,比较 3组的不同。结果　 3组材料喷磨后的重量损失有显著性差异 (P <0 0 5 ) ,深冷处理可以有效提高SDA-Ⅱ型中熔合金的耐磨性能 ;从耐磨性的角度而言 ,深冷处理后的保温处理对于SDA-Ⅱ型中熔合金是不必要的。结论　深冷处理技术是改善SDA-Ⅱ型中熔合金耐磨性的有效手段 ,其有可能成为改善口腔修复材料综合性能的一条简便、快捷、经济而有效的新途径.

关键词: 深冷处理, 中熔铸造合金, 耐磨性

Abstract:

Objective The purpose of this study was to introduce cryotreat technique into prosthetic dentistry by investigating the wear resistance changes of SDA-Ⅱ medium melting-point castable alloy before and after cryotreat.Methods 15 samples were divided into three groups, i.e. control group, cryotreat group, cryotreated plus post-cryogenic treat group. Weight loss measurement was used to examine the wear resistance.Results For SDA-Ⅱ medium melting-point castable alloy, cryotreat effectively improved its wearing resistance; so far as the wear resistance was concerned, the post-cryogenic treatment was unnecessary. Conclusion The results obtained above suggest that cryotreat was an effective method in enhancing the wear resistance of SDA-Ⅱ medium melting-point castable alloy.

Key words: cryotreat, SDA-Ⅱ medium melting-point castable alloy, wear resistance

赵鹃,朱智敏,陈孟诗. 深冷处理技术对口腔中熔铸造合金耐磨性的影响[J]. 华西口腔医学杂志.

ZHAO Juan*,ZHU Zhimin,CHEN Mengshi.. The Effect of Cryotreat on the Wear Resistance of the Medium Melting-point Castable Alloy[J]. West China Journal of Stomatology.

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