Abstract：
This study investigated the usefulness of a dental laboratory polymerization unit with light-emitting diode (LED) as a light source. The depth of cure (n=15), water absorption and solubility (n=9) of two indirect composite materials (Cesead N and Solidex Hardura) were evaluated by five dental laboratory polymerization units (LED Cure Master, Twinkle LED, α-Light V, α-Light II, and Hyper LII). Statistical analysis was performed by one-way ANOVA and Tukey test or non-parametric tests. Comparison of light sources for curing depth showed that metal halide had the highest value, followed by the LED group with similar values, and halogen lamps with the lowest value. The water absorption and solubility of the composite specimens polymerized with the three LED laboratory polymerization units were within the ISO recommended limit.
摘要：
这项研究调查了以发光二极管（LED）为光源的牙科实验室聚合单元的有用性。固化深度（n=15），通过五个牙科实验室聚合单元（LEDCureMaster，闪烁LED，α-LightV,α-LightII,和HyperLII）。通过单因素方差分析和Tukey检验或非参数检验进行统计学分析。比较光源的固化深度表明，金属卤化物具有最高的价值，其次是具有相似值的LED组，和最低值的卤素灯。用三个LED实验室聚合单元聚合的复合材料样品的吸水率和溶解度在ISO推荐的限值内。
