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.
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
1998年第1期27-29,共3页
Journal of Practical Stomatology
关键词
义齿
基托
甲基丙烯酸甲酯
热压灌注
成型
Denture base
Methylmethacrylat
Dental plastic modeling teehnique