光固化复合树脂的聚合深度和光照距离  

Iradiation Distance of Visible Light and Depth of Cure of Light Activated Composites

作　　者：方儒雄[1] 林珊[1] 魏斌[1] 

机构地区：[1]福建医学院附属第一医院口腔科

出　　处：《福建医学院学报》1993年第3期218-220,共3页

摘　　要：采用刮除法测量不同光照距离对可见光固化复合树脂(VLAC)聚合深度的影响。VLAC 的聚合深度随照射距离的增大而减少,随照射时间延长而增加。适当延长照射时间,对增加聚合深度有一定作用。过多地延长照射时间,对聚合深度的增加则非常有限。An investigetion was carried out to measure the depth of cure of three composite resins with scrap- ping method,after light curing for 20s,40s and 60s through various distances.The results showed that the depth of cure could be increased as the irradiation distance was decreased and/or the exposure time was prolonged.When the irradiation distance is 5mm,40s,exposure time is suitable.Any more exposure time will have little effect on the depth of cure.

关 键 词：光固化 复合树脂 聚合深度 

分 类 号：R318.08[医药卫生—生物医学工程]