Preparation of molecule designed functional resin and its clinical application

考察了阴离子聚合和悬浮聚合制备的聚甲基丙烯酸甲酯颗粒的物理性能。用聚甲基丙烯酸甲酯颗粒制备的义齿基托树脂，在控制聚合体系和水浴中制备树脂板和上颌义齿，考察树脂的物理性能和对义齿的适应性。悬浮聚合制备的聚甲基丙烯酸甲酯干燥颗粒（Mn≒85万，平均粒径≒80μm），其控制聚合体系制备的树脂板的物理性能优于用原颗粒制备的树脂板和用干燥或原颗粒在水浴中制备的树脂板。此外，使用干燥聚合物颗粒制备的义齿对铸型的适应性明显优于其他方法制备的义齿。该体系与干燥后的聚合物颗粒组合后的树脂盘的吸水量小于其他组合后的树脂盘。

Physical properties of polymethyl methacrylate particles fabricated by anionic polymerization or suspension polymerization was examined. After resin plates and maxillary dentures were made with a controlled polymerization system and in a water bath using denture base resin made from the polymethyl methacrylate particles, physical properties of the resins and adaptations of the dentures were examined. The resin plates made with the controlled polymerization system using the dried polymethyl methacrylate particles (Mn≒850,000, average grain diameter≒80μm) fabricated by the suspension polymerization had better physical properties, compared with resin plates processed by the system using the original particles and made in the water bath using the dried or original particles. Additionally, the dentures made with the system using the dried polymer particles had exhibited significantly better adaptation to the cast than those made with the other methods. The amount of water absorption of the resin disks processed by the combination of the system and the dried polymer particles was less than the disks made by the other combinations.