Goheen K L, Vermilyea S G, Vossoughi J, Agar J R
USA DENTAC Walter Reed Army Medical Center, Washington, DC.
Int J Oral Maxillofac Implants. 1994 Mar-Apr;9(2):149-55.
This study evaluated the ability of practitioners experienced in the use of Brãnemark implant components to impart a desired torque using handheld screwdrivers. The torque output and variability of mechanical torque devices was also examined. For clinicians using handheld screwdrivers, values ranged from 0.7 to 18.1 Ncm, 1.4 to 33.7 Ncm, and 8.2 to 36.2 Ncm for the 10-Ncm, 20-Ncm, and 32-Ncm torques respectively. The manually operated mechanical torquing devices produced torque values within the tolerances specified by their respective manufacturers at all levels. Significant variation from the manufacturer's set values were noted as a function of tightening speed with the electronic torquing device. The data indicate that there is wide variation in the ability of clinicians to perceive adequate torquing forces applied to implant components. Calibrated torquing devices are mandatory if proper torquing procedures are to be accomplished.
本研究评估了有使用布兰emark种植体组件经验的从业者使用手持螺丝刀施加所需扭矩的能力。还检查了机械扭矩装置的扭矩输出和变异性。对于使用手持螺丝刀的临床医生，10 Ncm、20 Ncm和32 Ncm扭矩的值分别为0.7至18.1 Ncm、1.4至33.7 Ncm和8.2至36.2 Ncm。手动操作的机械扭矩装置在各级别均产生了其各自制造商规定公差范围内的扭矩值。使用电子扭矩装置时，发现与制造商设定值存在显著差异，这是拧紧速度的函数。数据表明，临床医生感知施加于种植体组件的足够扭矩力的能力存在很大差异。如果要完成正确的扭矩操作程序，校准扭矩装置是必不可少的。
