摘要
目的:比较3种不同包埋液对磷酸盐包埋材料抗压强度影响的差异。方法:选用3种包埋液与Dentaurum包埋材料的按厂商推荐比例混合调拌,各制作10个标准试件。按照Dentaurum包埋料的使用说明进行焙烧和烘烤至900℃,室温下用岛津拉伸机检测试件烘烤前后的抗压强度。结果:各组试件抗压强度烘烤前后差别明显。蒸馏水组与其他两相比存在显著性差异(P<0.05)。结论:采用磷酸盐包埋材料制作的铸型抗压强度在烘烤后明显降低。选用蒸馏水与Dentaurum磷酸盐包埋材料混合调拌,铸型抗压强度明显低于其他两组,不适于无圈包埋。
Objective: The purpose of this study was to compare the effect of different investment liquid on the Com-pressive Strength of Phosphate-bonded Investment Materials. Methods: The three sorts of investment liquid were mixed with Dentaurum investment materials according to manufacturer s recommendation before poured in the molds. There are 10 samples in every groups. After heated up to 900℃, every sample was placed on a universal experimental machine to test its compressive strength in ambient. Results: From t...
出处
《口腔颌面修复学杂志》
2010年第1期18-20,共3页
Chinese Journal of Prosthodontics
关键词
磷酸盐
包埋材料
包埋液
抗压强度
phosphate
investment materials
investment liquid
compressive strength
