Fit of unit-cast fixed partial dentures related to casting ring size and shape.
Fit of unit-cast fixed partial dentures related to casting ring size and shape.
复制标题
整体铸造固定局部义齿的配合与铸造环的尺寸和形状有关。
DOI：
10.1016/0022-3913(80)90180-8
复制
发表时间：
1980
期刊：
影响因子：
--
通讯作者：
W. Eames
中科院分区：
文献类型：
--
作者：
F. A. Saas;W. Eames
对四种类型的铸造环进行了测试，以生产精确贴合的固定局部义齿。所测试的铸造环均未产生理想的结果，但当使用磷酸盐粘合包埋材料和 III 型金时，较大的椭圆形和圆形环生产的固定局部义齿作为一个整体铸造，比较小的圆形铸造环生产的固定局部义齿具有更完整的就位。固定局部义齿的就位受铸造环尺寸的影响，但不受其形状的影响。虽然蜡的变形和金合金的尺寸变化确实会影响铸件的就位质量，但在本研究中这并不具有统计显着性。
Four types of casting rings were tested for producing accurate-fitting fixed partial dentures. None of the casting rings tested produced ideal results, but the larger oval and round rings produced fixed partial dentures cast as a single unit with more complete seating than those produced in smaller round casting rings when phosphate bonded investment and Type III gold were used.Fixed partial denture seating was affected by the casting ring size but not because of its shape.While distortion of the wax and dimensional change in the gold alloy do affect the seating qualities of castings, this was not statistically significant in this study.