Song Y, Xu J, Ma X
College of Stomatology, Fourth Military Medical University, Xian.
Zhonghua Kou Qiang Yi Xue Za Zhi. 1997 Mar;32(2):108-10.
The loss of screw is one of the clinic complication in MDIC implant denture cases. The purpose of this study is to find the cause of loss of screw. The authors has studied MDIC implant denture with SEM before and after employ of the screw and found that the causes of screw loss were crevice corrosion and friction pressure. Crevice corrosion may promote the loss of screw. Base the above condition, it is necessary to select Ti-alloy screw and associat with anticorrosive measure in MDIC implant denture construction.
螺丝松动是磁性附着体覆盖义齿病例中的临床并发症之一。本研究旨在找出螺丝松动的原因。作者在使用螺丝前后，通过扫描电子显微镜对磁性附着体覆盖义齿进行了研究，发现螺丝松动的原因是缝隙腐蚀和摩擦压力。缝隙腐蚀可能会促使螺丝松动。基于上述情况，在磁性附着体覆盖义齿修复中，有必要选择钛合金螺丝并采取防腐措施。
