Journal of implantology and applied sciences ISSN:2765-7833(Print) 2765-7841(Online) 대한구강악안면임플란트학회지

This study evaluated the accuracy and the consistency of torque which were delivered from four mechanical torque devices and one electric torque device used routinely in our department. To measure the torque output of each torque device, torque device positioned in the jaws of torque gauge was and then target torque of 20Ncm was applied. The delivered torque was recorded thirty times for each device. Within the limits of this study design, the following conclusions can be made; 1. Torque output of each individual device deviated in varying ranges from target torque values. 2. The means of torque value delivered from five torque devices were within the deviation of 10% of the target torque values. 3. 3i Restorative torque indicator and Nobel Biocare Prosthetic manual torque wrench produced the most accurate and consistent torque values. 4. Osstem Torque wrench recorded the largest variations from target torque values. 5. The electric torque device was the only one which delivered the lower torque values than the target torque value.