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首页> 外文期刊>The Journal of Prosthetic Dentistry >Effectiveness of polymerization of a prosthetic composite using three polymerization systems.
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Effectiveness of polymerization of a prosthetic composite using three polymerization systems.

机译：使用三种聚合体系的修复复合材料的聚合效果。

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STATEMENT OF PROBLEM: Although properties of laboratory-polymerized composite materials are influenced by the type of polymerizing unit, little information is available regarding the comparison between use of a high-intensity light source and application of secondary heat treatment. PURPOSE: This study examined properties of a prosthetic veneering composite polymerized with 3 polymerizing systems to evaluate the effects of varying polymerization modes on hardness, solubility, and depth of cure. MATERIAL AND METHODS: A composite material designed for a prosthetic veneer (Conquest Crown and Bridge) was polymerized using 3 methods: (1) exposure in the proprietary photopolymerizing unit with 2 halogen lamps (Cure-Lite Plus), followed by heating in an oven (Conquest Automatic Curing Unit); (2) exposure in a photopolymerizing unit with a xenon stroboscopic light source (Dentacolor XS); and (3) exposure in a photopolymerizing unit with 2 metal halide lamps (Hyper LII). Knoop hardness, water solubility, and depth of cure were determined for groups of 5 specimens, according to standardized testing methods. Data were compared using analysis of variance and the Duncan new multiple range test (P <.05). RESULT: The hardness number generated with the metal halide unit was statistically greater than those produced by the other 2 methods, and material component released into water was minimal when the material was exposed with the metal halide unit (P <.05). Among the 3 photopolymerizing units, the metal halide unit consistently exhibited the greatest depth of cure. CONCLUSION: Certain properties generated with the use of the high-intensity polymerizing unit exceeded those obtained from a proprietary system that requires a postheat treatment.
机译：问题陈述：尽管实验室聚合的复合材料的性能受聚合单元类型的影响，但是关于高强度光源的使用与二次热处理的应用之间的比较，信息很少。目的：本研究检查了用3种聚合体系聚合的假肢饰面复合材料的性能，以评估不同聚合模式对硬度，溶解度和固化深度的影响。材料和方法：使用以下3种方法聚合专为人造板（Conquest Crown and Bridge）设计的复合材料：（1）在专有的光聚合单元中使用2个卤素灯（Cure-Lite Plus）进行曝光，然后在烤箱中加热（征服自动固化单元）; （2）在具有氙频闪灯光源（Dentacolor XS）的光聚合单元中曝光; （3）在带有两个金属卤化物灯（Hyper LII）的光聚合单元中曝光。根据标准测试方法，对5个试样的组确定了努努普硬度，水溶性和固化深度。使用方差分析和Duncan新的多范围检验比较数据（P <.05）。结果：金属卤化物单元产生的硬度值在统计学上大于其他两种方法产生的硬度值，当材料暴露于金属卤化物单元时，释放到水中的材料成分最少（P <.05）。在三个光聚合单元中，金属卤化物单元始终显示出最大的固化深度。结论：使用高强度聚合装置产生的某些性能超过了需要后热处理的专有系统所获得的性能。

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