Sullivan D Y, Sherwood R L, Collins T A, Krogh P H
University of Pennsylvania, School of Dental Medicine, Philadelphia, USA.
Int J Oral Maxillofac Implants. 1996 Mar-Apr;11(2):179-85.
Reverse torque to failure on implants has been studied in animals. Three implants were reverse torqued to failure in a human volunteer, with failure rates between 45 and 58 Ncm. Clinical data are presented on 404 implants examined after reverse-torque testing and loading, with no increase in failure rates. Reverse-torque testing at 20 Ncm appears to be a safe, reliable method for verifying osseointegration with pure titanium screw-shaped implants.
已经在动物身上研究了植入物的反向扭矩至失效情况。在一名人类志愿者身上对三个植入物进行了反向扭矩至失效测试,失败率在45至58牛顿厘米之间。给出了404个植入物在反向扭矩测试和加载后检查的临床数据,失败率没有增加。20牛顿厘米的反向扭矩测试似乎是一种验证纯钛螺旋形植入物骨整合的安全、可靠方法。