钴铬合金镀金后与低温瓷粉结合强度的实验研究

上海口腔医学 ›› 2014, Vol. 23 ›› Issue (1): 35-38.

钴铬合金镀金后与低温瓷粉结合强度的实验研究

郭菁, 朱嘉, 朱洪水

南昌大学附属口腔医院综合急诊科, 江西南昌 330006

收稿日期:2013-08-09 修回日期:2013-09-17 出版日期:2014-02-20 发布日期:2014-10-21
通讯作者: 朱洪水,Tel：0791-86361733,E-mail: zhuhongshui@126.com
作者简介:郭菁(1975-),女,硕士,副主任医师,Tel: 0791-86363621,E-mail：gj190407@163.com
基金资助:
江西省教育厅基金(GJJ10367)

Evaluation of bond strength between low fusing porcelain with goldplated cobalt-chromium alloys

GUO Jing, ZHU Jia, ZHU Hong-shui

Department of Comprehensive Dentistry, Affiliated stomatological Hospital, Nanchang University. Nanchang 330006, Jiangxi Province, China

Received:2013-08-09 Revised:2013-09-17 Online:2014-02-20 Published:2014-10-21
Supported by:
Foundation of Education Department of Jiangxi Province (GJJ10367)

摘要/Abstract

摘要： 目的：观察Vita OMEGA 900低温瓷粉与镀金后Wirobond® C钴铬烤瓷合金的金瓷结合强度及结合界面的微观形貌。方法：制作低温瓷粉与钴铬合金、镀金后钴铬合金试件各8个(A、B组)进行三点弯曲测试,再制作镀金组试件2个,随机抽取1个;在测试后的B组试件中随机抽取1个,包埋打磨后,分别用扫描电镜观察界面。采用SPSS16.0软件包对数据进行统计学分析。结果：钴铬合金组与镀金组的金瓷结合强度分别为(29.92±4.28)、(28.20±5.21) MPa (P>0.05),均显著大于ISO9693要求的25 MPa。扫描电镜下可见镀金试件金瓷界面金与瓷紧密嵌合、无缝隙;测试后试件瓷断裂处仍有大量金附着在钴铬合金表面。结论：Vita OMEGA 900低温瓷粉可与镀金后Wirobond® C钴铬烤瓷合金匹配使用。

关键词: 镀金, 钴铬合金, 低温瓷粉

Abstract: PURPOSE: To evaluate the bond strength of Vita OMEGA 900 low fusing porcelain fused with the goldplated Wirobond® cobalt-chrome metalt ceramic alloy. METHODS: Low fusing porcelain was fused with the cobalt-chromium alloy strips(group A) and the goldplated cobalt-chromium alloy strips(group B) respectively according to ISO9693 (A:8、B:10). 8 specimens of each group were submitted to three point bending test. Two more test pieces fused with gold plated cobalt-chromium alloys were made (group B’). One test piece of both group B and group B’ were observed under scanning electron microscope (SEM) randomly. The data was analyzed with SPSS 16.0 software package. RESULTS: The bond strength (MPa) of group A and group B was 29.92±4.28 and 28.20±5.21, respectively (P>0.05), both higher than 25 MPa required by ISO9693. SEM showed that Vita OMEGA 900 low fusing porcelain and the goldplated Wirobond® cobalt-chrome metalt ceramic alloy combined together closely without cracks. Much gold was fused to the cobalt-chrome alloy surface of breaking porcelain specimen after testing. CONCLUSIONS: Vita OMEGA 900 low fusing porcelain can match with the goldplated Wirobond® cobalt-chrome metalt ceramic alloy.

Key words: Goldplated, Cobalt-chromium, Low fusing porcelain

中图分类号:

R783.1

郭菁, 朱嘉, 朱洪水. 钴铬合金镀金后与低温瓷粉结合强度的实验研究[J]. 上海口腔医学, 2014, 23(1): 35-38.

GUO Jing, ZHU Jia, ZHU Hong-shui. Evaluation of bond strength between low fusing porcelain with goldplated cobalt-chromium alloys[J]. Shanghai Journal of Stomatology, 2014, 23(1): 35-38.

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