生物活性牙科复合树脂的研究进展

Research Progress of Bioactive Dental Resin Composites

牙科复合树脂由于色泽美观,在口腔临床上具有广泛的应用。但其仍然存在边缘缝隙的问题,从而导致继发龋的发生。再矿化复合树脂中的生物活性填料会释放能够再矿化的钙、磷离子,促使材料表面形成矿化层,能够抑制二次龋的发生。本文介绍了不同种类、含量、粒径大小和表面改性的生物活性填料对复合树脂物理、机械性能的影响,分析了再矿化复合树脂的再矿化行为,提出了再矿化复合树脂亟待解决的问题和研究难点,展望了复合树脂的研究方向。

Dental resin composites have been widely used in clinical due to their esthetics. However, the marginal gap is still a major problem for resin composite restorative materials, which then lead to the occurrence of secondary caries. In recent years, remineralizing resin composites have been developed to prevent or decrease dental secondary caries, which can release remineralizing agents, such as calcium and phosphate ions. This review summarizes the effects of the kinds, content, particle size and surface treatment of bioactive filler on the physical and mechanical properties of resin composites, focusing on the remineralization behavior of the remineralizing dental composites. It was found that a variety of bioactive dental resin composites are able to promote remineralization. This suggests that remineralizing rein composites have the potential to slow the development and propagation of secondary caries at restoration margins.