Smith L T, Powers J M
Dental Branch, University of Texas Health Science Center at Houston.
Am J Dent. 1992 Jun;5(3):140-2.
This study compared in vitro the relative fit of seven denture resins polymerized by different methods to their gypsum casts. Relative fit in the molar-to-molar region of the resin bases on their stone casts was evaluated independently by five evaluators at three times (after processing, after polishing and after storage in water) and ranked using non-parametric statistics. The denture resins polymerized by microwave energy, (Acron MC), low heat, (Perform, 45 degrees C), and visible light, (Triad) fit better after polishing and after storage in water than those resins polymerized at higher temperatures (Lucitone 199, 74 degrees C and Accelar 20, Compak and Permacryl 20, 100 degrees C). The traditional heat-polymerized resin (Lucitone) had an average fit after storage in water.
本研究在体外比较了通过不同方法聚合的七种义齿树脂与其石膏模型的相对贴合度。由五名评估人员在三个时间点(加工后、抛光后和在水中储存后)独立评估树脂基托在其石膏模型上磨牙到磨牙区域的相对贴合度,并使用非参数统计进行排名。通过微波能量聚合的义齿树脂(Acron MC)、低温聚合的(Perform,45摄氏度)和可见光聚合的(Triad)在抛光后和在水中储存后比在较高温度下聚合的树脂(Lucitone 199,74摄氏度;Accelar 20、Compak和Permacryl 20,100摄氏度)贴合度更好。传统热聚合树脂(Lucitone)在水中储存后的贴合度一般。