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采用 CW—PA(Ni-Cr-Nb)烤瓷合金和 HCAEST(?)磷酸盐结合系包埋料,比较有圈包埋与无圈包埋两种包埋方法和蜡型立即包埋与存放24小时后包埋两种蜡型存放时间,考察三单位金属烤瓷固定桥整铸支架的适合性。结果,在本实验条件下,使用非贵金属烤瓷合金制作的整铸固定桥适合性较差;有圈包埋与无圈包埋之间无统计差异;蜡型不存放与存放24小时之间基本无统计差异;表明铸件的变形是不可避免的,这与固定桥的特殊形状有密切关系。
The embedding material of CW-PA (Ni-Cr-Nb) ceramic alloy and HCAEST (?) Phosphate binding system were compared. 24 hours after embedding two kinds of wax-type storage time to examine the three units of metal porcelain fixed bridge cast stent suitability. As a result, under the experimental conditions, the cast-in fixing bridge made of non-precious metal ceramic alloy has poor suitability; there is no statistical difference between ring-embedded and ring-less embedded; the wax type is not stored for 24 hours Basically no statistical difference; that castings deformation is inevitable, which is closely related to the special shape of the fixed bridge.