多次烧结遮色瓷对金瓷修复体结合强度的影响  

Effect of multiple firing opaque on the bond strength of porcelain-fused-to-metal restoration

作　　者：陈林[1] 李春林[1] 刘建国[1] 王航[2] 范芹[1] 李洁仪[1] 

机构地区：[1]遵义医学院附属口腔医院修复科,贵州遵义563003 [2]四川大学华西口腔医学院修复科,成都610041

出　　处：《第三军医大学学报》2011年第23期2530-2531,共2页Journal of Third Military Medical University

基　　金：贵州省卫生厅基金资助项目(K-012)~~

摘　　要：目的探讨遮色瓷不同烧结次数对镍铬金瓷修复体结合强度的影响。方法采用剪切强度测试法测量烧结遮色瓷1、3、5、7、9次后金瓷修复体的结合强度。结果金瓷修复体剪切结合强度随遮色瓷重复烧结次数的增加呈明显下降趋势,1、3次烧结与5、7、9次烧结有统计学差异(P<0.05)。结论制作金瓷修复体,其遮色瓷层的烧结不宜超过3次。Objective To investigate the effect of multiple firing opaque on the bond strength of porcelain-fused-to-metal（PFM） restoration.Methods Bond strength of PFM restoration after opaque fired for 1,3,5,7 and 9 times was measured using shear bond strength assay.Results The shear bond strength of PFM restoration decreased significantly with the increase of firing times.Significant differences were found between 1,3 times and 5,7,9 times（P〈0.05）.Conclusion Opaque firing for more than three times can decrease the bond strength of PFM restoration.

关 键 词：金瓷修复体 遮色瓷 烧结 结合强度 

分 类 号：R783.1[医药卫生—口腔医学] R783.2[医药卫生—临床医学]