磷酸盐包埋材料抗压强度的实验研究

华西口腔医学杂志

磷酸盐包埋材料抗压强度的实验研究

李振春,郝凤渝,熊鹰

110002　中国医科大学附属口腔医院修复科(李振春, 郝凤渝),沈阳市第四人民医院口腔科(熊　鹰)

收稿日期:2003-08-25 修回日期:2003-08-25 出版日期:2003-08-20 发布日期:2003-08-20
基金资助:
本课题为辽宁省科学技术基金资助项目(编号99010300602)

The Study of Compressive Strength of Phosphate-bonded Investment Materials

LI Zhenchun*,HAO Fengyu,XIONG Ying.

*Department ofProsthodontics,School ofStomatology,China Medical University, Shenyang110002,China

Received:2003-08-25 Revised:2003-08-25 Online:2003-08-20 Published:2003-08-20

摘要/Abstract

摘要：

目的　比较3种不同磷酸盐包埋材料经焙烧后抗压强度的差异。方法　选用3种包埋材料:Heravest Speed,GILVESTⅡS,X-20 Chrome Investment,将3种包埋材料的粉液按厂商推荐比例混合调拌,灌注成型。经900℃ 焙烧后在室温下用万能材料试验机检测实验标本的抗压强度。结果　不同品牌的磷酸盐包埋材料抗压强度存在显著差异(P<0·01)。结论　实验条件下,X-20 Chrome Investment包埋材料使用专用液调拌的标本抗压强度值最高。

关键词: 包埋材料, 抗压强度, 磷酸盐

Abstract:

Objective　The purpose of this study was to compare the compressive strength of phosphate-bonded invest- ments.Methods　The three sorts of investmentswere mixed accordingtomanufacturer′s recommendation before poured in the mol- ds. After heated up to 900℃, every sample was mounted on a universal experimental machine to test its compressive strength in ambient.Results　Significant differences were found between the four groups(P<0·01).Conclusion　From the data above it is concluded that the compressive strength of X-20 Chrome Investment mixed with the special liquid was the highest.

Key words: investment materials, compressive strength, phosphate

李振春,郝凤渝,熊鹰. 磷酸盐包埋材料抗压强度的实验研究[J]. 华西口腔医学杂志.

LI Zhenchun*,HAO Fengyu,XIONG Ying. . The Study of Compressive Strength of Phosphate-bonded Investment Materials[J]. West China Journal of Stomatology.

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