Zhao Juan, Zhu Zhimin, Chen Mengshi
Department of Prosthodontics, West China College of Stomatology, Sichuan University, Chengdu 610041, China.
Hua Xi Kou Qiang Yi Xue Za Zhi. 2003 Jun;21(3):184-5.
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.
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.
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.
The results obtained above suggest that cryotreat was an effective method in enhancing the wear resistance of SDA-II medium melting-point castable alloy.
本研究旨在通过研究SDA-II中熔铸合金低温处理前后耐磨性的变化，将低温处理技术引入口腔修复学。
将15个样本分为三组，即对照组、低温处理组、低温处理加低温后处理组。采用失重测量法检测耐磨性。
对于SDA-II中熔铸合金，低温处理有效提高了其耐磨性；就耐磨性而言，低温后处理没有必要。
上述结果表明，低温处理是提高SDA-II中熔铸合金耐磨性的有效方法。
