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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 被引量:2

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