每台iRetrofone均用聚氨酯树脂手工雕刻和铸造而成。
Each individual iRetrofone is hand-sculpted and hand-cast in urethane resin.
直接利用激光快速成型的原型树脂模，结合陶瓷型精密铸造技术，制得了高精度、低表面粗糙度、高使用寿命的钢模具。
The steel dies with high dimensional accuracy, low surface roughness and long service life have been quickly produced by using prototyping resin molds as patterns of ceramic investment casting.
结论：铸造支架与弹性树脂联合义齿兼有两者的优点，又克服了各自的不足，值得在临床中推广。
Conclusion the combination dentures have the advantages of both casting frame and elastic resin and can be used widely.
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