义齿塑料基托热压灌注成型新工艺—颜色稳定性的比较研究  

A new denture base curing technique via pour heat pressure curing color stability of the cured resin

作　　者：范冲之[1,2,3] 施长溪[1,2,3] 王继平 

机构地区：[1]上海市海军411医院口腔研究中心 [2]第四军医大学口腔医院修复科 [3]西安近代化学研究所二部

出　　处：《实用口腔医学杂志》1998年第1期27-29,共3页Journal of Practical Stomatology

摘　　要：目的：分析比较成型后的基托塑料可能发生的变色。方法：对不同粉、液比例灌注成型的基托塑料和常规模压成型的基托塑料，用分光测色仪观察颜色稳定性。结果：粉、液以２∶１体积比灌注成型的义齿基托，表面平整光滑，色调、饱和度与常规模压成型的义齿基托相同，而其表面可抛光性优于常规法。结论：２种方法成型的义齿基托对紫外线的敏感性无显著性差异。Objectioe: To sutdy the color stability of the resin cureing via pour heat presure cured. Mothol:The denture base resin was cased by routine method or pour heat pnessane method at different volume ratio of power to liquied. The color stability was measured by using spectrophotometer.Resoult:When the volume ratio of PMMA to MMA was 2∶1, the surface smoothness and the color stability of the resin cured by the new technic were superior to those by conventional heat curing. Conclusion:There is no difference in sensibility to ultra violet ray between the two denture bases cured by these two methods.

关 键 词：义齿 基托 甲基丙烯酸甲酯 热压灌注 成型 

分 类 号：R783.6[医药卫生—口腔医学] R783.2[医药卫生—临床医学]