摘要
目的:探讨不同树脂、不同光固化灯、不同投照距离、不同投照时间等因素对光固化复合树脂固化深度的影响。方法:制备底面直径4mm,高6mm的圆柱形试件模具,采用多因素不同水平的析因实验设计,共制备192例试件。用Planmeca曲面断层机扫描试件,并测量其固化深度。实验数据采用SPSS11.5软件包进行方差分析。结果:4种处理因素自身不同水平比较,差异具有统计学意义(P<0.01),且4个因素之间存在交互作用(P<0.01)。结论:2种光固化灯、2种树脂、4个投照距离、4个投照时间对光固化深度均有影响。对每种因素的优化,必将对固化深度产生叠加效果。
PURPOSE： To investigate the effect of different composite resin, different light curing units, different irradiation time, different irradiation distance on cure depths of light curing composite resin. METHODS： Designed by factorial experiment, 192 Cylindrical samples were made with 4mm internal diameter and 6mm high mold. The whole samples were scanned by Planmeca ProMax panoramic X-ray unit,cure depths were measured using a scoping method described in the ISO standard for resin-based composites. The data was statistically analyzed by SPSSll.5 software package for ANOVA. RESULTS： The differences of four factors-composite resin, light curing units, irradiation time, irradiation distance were significant （P〈0.01）, and the effects between-subjects were involved among four factors （P〈0.01）. CONCLUSIONS： From this study,we conclude that cure depths may be affected by two kinds of light curing units,two kinds of composite resin,four kinds of irradiation time and four kinds of irradiation distances,once each factor is strengthened,cure depths could reach a more ideal effect.Supported by Key Research Project of Science and Technology Committee of Liaoning Province（Grant No.00225001）.
出处
《上海口腔医学》
CAS
CSCD
2007年第5期520-522,共3页
Shanghai Journal of Stomatology
基金
辽宁省科学技术委员会科技攻关项目(00225001)
