Development of functional biomaterial consists of shape memory polymer and application to root canal filling material.

用反式- 1,4 -聚异戊二烯制备了具有形状记忆功能的根管充填点。通过对可加工性和密封性的检测，发现只需一个试验点即可恢复根管空间的形状，无需使用密封剂和辅助点即可轻松、彻底地填充根管，并在2年左右的时间内获得满意的密封效果。实验还制备了无需临时骨水泥即可固接的临时冠。试验临时冠几乎不需要调整接触和咬合。

The point for root canal filling which had a function of shape memory was produced by using Trans-1, 4-Polyisoprene experimentally. As the result of examination for the properties of workability and sealing, the space of root canal could be sealed by the recovery of shape for only one trial point for root canal filling easily and completely without the sealer and accessory point, and satisfactory sealing was gained for about two years. The temporary crown which could be cemented without temporary cement was also produced experimentally. The trial temporary crown almost not needed the adjustment for contact and occlusion.