论文部分内容阅读
目的研究一种新型电热聚合法对义齿基托残余单体含量的影响,并与传统水浴法在用水耗电上做比较。方法选择两种常用热凝义齿基托树脂材料,分别采用传统水浴法和电热聚合法制作样本,测量每次聚合过程中所需的用水量和耗电量。用气相色谱仪进行各样本残余甲基丙烯酸单体(MMA)的检测和比较。结果各样本残余MMA含量都满足国家医药行业YY0270-2003标准要求,传统水浴法的残余MMA含量略低,差别有统计学意义(P<0.05)。传统水浴法制作义齿每次每型盒用水1.25L,耗电(0.53±0.02)kwh,电热聚合法不需用水,耗电(0.09±0.02)kwh,差别有统计学意义。结论电热聚合法所制作样本残余MMA含量符合相关标准,是一种高效、节能的义齿基托聚合方法。
Objective To study the effect of a new type of electrothermal polymerization on residual monomer content of denture base and to compare with traditional water bath method in water consumption. Methods Two kinds of commonly used denture base resin materials were selected. Samples were prepared by traditional water bath method and electrothermal polymerization respectively. The water consumption and power consumption in each polymerization were measured. Gas chromatographs were used for the detection and comparison of residual methacrylic monomer (MMA) in each sample. Results The residual MMA content of each sample met the requirements of YY0270-2003 of the national pharmaceutical industry. The residual MMA content of the traditional water bath method was slightly lower (P <0.05). The conventional water bath denture produced 1.25L of water per type of box and consumes (0.53 ± 0.02) kwh electricity. The electrothermal polymerization method does not require water and consumes electricity (0.09 ± 0.02) kwh, the difference is statistically significant. Conclusion The residual MMA content of samples prepared by electrothermal polymerization method is in line with the relevant standards and is an efficient and energy-saving denture base polymerization.