Berman A T, Parks B G
School of Medicine, Hahnemann University, Philadelphia, PA 19102-1192.
J Orthop Trauma. 1990;4(1):85-92. doi: 10.1097/00005131-199003000-00015.
The mechanical properties of five synthetic fiberglass casting materials were evaluated and compared with the properties of plaster of Paris. Two of the tests were designed to bear clinical relevance and the third to determine intrinsic material properties. The effect of water on strength degradation was also evaluated. It was found that the synthetics as a group are far superior to plaster of Paris in all methods of testing and that, among the synthetics, KCast Tack Free, Deltalite "S", and KCast Improved were the stronger materials. Clinically, the most important results are that the synthetics attain their relatively high strength in a much shorter time frame than does plaster of Paris, and retain 70-90% of their strength after being immersed in water and allowed to dry.
对五种合成玻璃纤维铸造材料的机械性能进行了评估，并与巴黎石膏的性能进行了比较。其中两项测试旨在具有临床相关性，第三项测试旨在确定材料的固有特性。还评估了水对强度降解的影响。结果发现，作为一个整体，合成材料在所有测试方法中都远优于巴黎石膏，并且在合成材料中，KCast Tack Free、Deltalite "S" 和 KCast Improved 是强度较高的材料。在临床上，最重要的结果是，合成材料在比巴黎石膏短得多的时间内达到其相对较高的强度，并且在浸入水中并干燥后仍保留其强度的70-90%。
