el Charkawi H G, Zekry K A, el Wakad M T
Prosthodontics Department, Cairo University, Egypt.
J Prosthet Dent. 1994 Dec;72(6):614-22. doi: 10.1016/0022-3913(94)90294-1.
Controversy exists when implants are used to restore distal extension in edentulous patients. Some have advocated the use of a rigidly connected implant to the natural abutment teeth and others have recommended the inclusion of a stress-breaking element. In this study, a comparison between these two approaches was done. With the technology of strain gauges, it was possible to record stresses under a rigid and a resilient implant system connected to a natural abutment with the same prosthesis under the same loading conditions. The results of this study showed that a resilient implant system was better for the abutment and the implant. This study provides a test method that will help dentists in choosing implants for their patients with predictable results.
当使用种植体修复无牙患者的远中延伸部位时，存在争议。一些人主张将种植体与天然基牙进行刚性连接，而另一些人则建议采用应力中断元件。在本研究中，对这两种方法进行了比较。利用应变片技术，在相同的加载条件下，使用相同的修复体，能够记录连接到天然基牙的刚性和弹性种植体系统下的应力。本研究结果表明，弹性种植体系统对基牙和种植体更好。本研究提供了一种测试方法，将有助于牙医为患者选择种植体，获得可预测的结果。
