Gonzalez J B
J Prosthet Dent. 1978 Feb;39(2):179-87. doi: 10.1016/s0022-3913(78)80018-3.
A review of the polyurethane elastomers used for facial prostheses has been presented. A description of the casting technique was given. The materials require accuracy and care in handling to insure the successful casting of a prosthesis. They seem to simulate the characteristics of the facial tissues and are more durable and comfortable than previously used materials. Over 300 patients have been exposed to or treated with these materials without evidencing significant adverse tissue reaction. In spite of the improvements that these materials present over previous ones (PVC and silicones), much work is still required to understand their behavior and their physical and mechanical characteristics and to compensate for the metameric phenomenon.
本文对用于面部假体的聚氨酯弹性体进行了综述。介绍了铸造技术。这些材料在处理时需要精确性和小心谨慎，以确保成功铸造假体。它们似乎能模拟面部组织的特性，并且比以前使用的材料更耐用、更舒适。已有300多名患者接触或使用了这些材料，未出现明显的不良组织反应。尽管这些材料相对于以前的材料（聚氯乙烯和硅酮）有了改进，但仍需要做大量工作来了解它们的性能以及物理和机械特性，并补偿同色异谱现象。
