Dobies K, Gehre G, Bién D, Fechler M
Protet Stomatol. 1990 Sep-Oct;40(5):228-37.
The results are presented of experimental studies of casting contraction of metal crowns and bridges with an attempt at outlining of practical suggestions concerning the choice of materials and work technology with alloys based on nickel. Casting contraction was determined for the following alloys: Gisadent MCA, Gisadent NCS1, Mikrostom-1 and Wiron-88. The need for further studies on alloys based on nickel which may be used for preparation of permanent replacements as substitutes of precious metals is caused in Poland and all over the world by economic factors.
本文给出了金属冠和桥铸造收缩的实验研究结果，并尝试就基于镍的合金的材料选择和加工工艺提出实用建议。测定了以下合金的铸造收缩率：Gisadent MCA、Gisadent NCS1、Mikrostom-1和Wiron-88。经济因素在波兰乃至全世界引发了对基于镍的合金进行进一步研究的需求，这类合金可作为贵金属的替代品用于制备永久性修复体。
