Dellinges M, Curtis D
Department of Restorative Dentistry, University of California, San Francisco, USA.
J Prosthet Dent. 1996 Jan;75(1):93-8. doi: 10.1016/s0022-3913(96)90424-2.
Loosening of screw components for implant restorations has been attributed to insufficient tightening. The degree of tightening may be increased and more closely controlled by use of calibrated mechanical torque wrenches. The DynaTorq wrench system has been introduced to the market and consists of three individual wrenches with torque values of 10, 20, and 30 newton-centimeters (Ncm). This study evaluated the accuracy of the DynaTorq wrench system before and after steam autoclave and Chemiclave sterilization treatment. Before sterilization treatments, the wrenches demonstrated high accuracy and precision. Autoclaving resulted in increases in torque values for the 10 Ncm torque wrench compared with baseline measurements. Except for the effect of autoclaving on the 10 Ncm torque wrench, sterilization procedures did not adversely affect the accuracy of the DynaTorq torque wrench system.
种植体修复体的螺钉组件松动被认为是拧紧不足所致。使用校准的机械扭矩扳手可增加拧紧程度并进行更严格的控制。DynaTorq扳手系统已投放市场，它由三把扭矩值分别为10、20和30牛顿厘米（Ncm）的独立扳手组成。本研究评估了蒸汽高压灭菌和化学灭菌处理前后DynaTorq扳手系统的准确性。在灭菌处理前，这些扳手显示出高精度和高精确度。与基线测量相比，高压灭菌导致10 Ncm扭矩扳手的扭矩值增加。除了高压灭菌对10 Ncm扭矩扳手的影响外，灭菌程序并未对DynaTorq扭矩扳手系统的准确性产生不利影响。
